Home / 1,243,085,624.32-1,715,457,902.72-686,168,526.08

Finding the Fourth Proportional to 1,243,085,624.32, 1,715,457,902.72 and 686,168,526.08

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Solution

The fourth proportional to 1,243,085,624.32, 1,715,457,902.72 and 686,168,526.08 is: 946,912,423.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,085,624.32 : 1,715,457,902.72 = 686,168,526.08 : x
  2. Step 2: Convert to fraction form
    1,243,085,624.32/1,715,457,902.72 = 686,168,526.08/x
  3. Step 3: Cross multiply
    1,243,085,624.32x = 1,715,457,902.72 × 686,168,526.08
  4. Step 4: Simplify right side
    1,243,085,624.32x = 1,177,093,220,661,670,400
  5. Step 5: Solve for x
    x = 1,177,093,220,661,670,400/1,243,085,624.32
  6. Step 6: Final answer
    x = 946,912,423.11

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.