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Finding the Fourth Proportional to 265,720,331.10, 398,580,496.65 and 265,720,331.10

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Solution

The fourth proportional to 265,720,331.10, 398,580,496.65 and 265,720,331.10 is: 398,580,496.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,720,331.10 : 398,580,496.65 = 265,720,331.10 : x
  2. Step 2: Convert to fraction form
    265,720,331.10/398,580,496.65 = 265,720,331.10/x
  3. Step 3: Cross multiply
    265,720,331.10x = 398,580,496.65 × 265,720,331.10
  4. Step 4: Simplify right side
    265,720,331.10x = 105,910,941,539,840,432
  5. Step 5: Solve for x
    x = 105,910,941,539,840,432/265,720,331.10
  6. Step 6: Final answer
    x = 398,580,496.65

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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.