Home / 664,275,959.10-996,413,938.65-615,903,018.30

Finding the Fourth Proportional to 664,275,959.10, 996,413,938.65 and 615,903,018.30

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Solution

The fourth proportional to 664,275,959.10, 996,413,938.65 and 615,903,018.30 is: 923,854,527.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,275,959.10 : 996,413,938.65 = 615,903,018.30 : x
  2. Step 2: Convert to fraction form
    664,275,959.10/996,413,938.65 = 615,903,018.30/x
  3. Step 3: Cross multiply
    664,275,959.10x = 996,413,938.65 × 615,903,018.30
  4. Step 4: Simplify right side
    664,275,959.10x = 613,694,352,290,726,016
  5. Step 5: Solve for x
    x = 613,694,352,290,726,016/664,275,959.10
  6. Step 6: Final answer
    x = 923,854,527.45

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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.