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Finding the Fourth Proportional to 541,640.61, 748,242.63 and 432,601.79

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Solution

The fourth proportional to 541,640.61, 748,242.63 and 432,601.79 is: 597,612.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,640.61 : 748,242.63 = 432,601.79 : x
  2. Step 2: Convert to fraction form
    541,640.61/748,242.63 = 432,601.79/x
  3. Step 3: Cross multiply
    541,640.61x = 748,242.63 × 432,601.79
  4. Step 4: Simplify right side
    541,640.61x = 323,691,097,351.10
  5. Step 5: Solve for x
    x = 323,691,097,351.10/541,640.61
  6. Step 6: Final answer
    x = 597,612.31

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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.