Home / 1,457,688.20-2,186,532.30-511,154.60

Finding the Fourth Proportional to 1,457,688.20, 2,186,532.30 and 511,154.60

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Solution

The fourth proportional to 1,457,688.20, 2,186,532.30 and 511,154.60 is: 766,731.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457,688.20 : 2,186,532.30 = 511,154.60 : x
  2. Step 2: Convert to fraction form
    1,457,688.20/2,186,532.30 = 511,154.60/x
  3. Step 3: Cross multiply
    1,457,688.20x = 2,186,532.30 × 511,154.60
  4. Step 4: Simplify right side
    1,457,688.20x = 1,117,656,043,193.58
  5. Step 5: Solve for x
    x = 1,117,656,043,193.58/1,457,688.20
  6. Step 6: Final answer
    x = 766,731.90

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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.