Home / 1,123,416,441.40-1,684,452,815.70-579,220,857.40

Finding the Fourth Proportional to 1,123,416,441.40, 1,684,452,815.70 and 579,220,857.40

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Solution

The fourth proportional to 1,123,416,441.40, 1,684,452,815.70 and 579,220,857.40 is: 868,484,889.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,416,441.40 : 1,684,452,815.70 = 579,220,857.40 : x
  2. Step 2: Convert to fraction form
    1,123,416,441.40/1,684,452,815.70 = 579,220,857.40/x
  3. Step 3: Cross multiply
    1,123,416,441.40x = 1,684,452,815.70 × 579,220,857.40
  4. Step 4: Simplify right side
    1,123,416,441.40x = 975,670,204,159,598,208
  5. Step 5: Solve for x
    x = 975,670,204,159,598,208/1,123,416,441.40
  6. Step 6: Final answer
    x = 868,484,889.67

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.