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Finding the Fourth Proportional to 424,023.31, 636,066.11 and 157,783.78

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Solution

The fourth proportional to 424,023.31, 636,066.11 and 157,783.78 is: 236,687.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,023.31 : 636,066.11 = 157,783.78 : x
  2. Step 2: Convert to fraction form
    424,023.31/636,066.11 = 157,783.78/x
  3. Step 3: Cross multiply
    424,023.31x = 636,066.11 × 157,783.78
  4. Step 4: Simplify right side
    424,023.31x = 100,360,915,165.70
  5. Step 5: Solve for x
    x = 100,360,915,165.70/424,023.31
  6. Step 6: Final answer
    x = 236,687.26

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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.