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Finding the Fourth Proportional to 624,161.10, 935,694.90 and 423,831.90

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Solution

The fourth proportional to 624,161.10, 935,694.90 and 423,831.90 is: 635,376.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,161.10 : 935,694.90 = 423,831.90 : x
  2. Step 2: Convert to fraction form
    624,161.10/935,694.90 = 423,831.90/x
  3. Step 3: Cross multiply
    624,161.10x = 935,694.90 × 423,831.90
  4. Step 4: Simplify right side
    624,161.10x = 396,577,347,287.31
  5. Step 5: Solve for x
    x = 396,577,347,287.31/624,161.10
  6. Step 6: Final answer
    x = 635,376.58

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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.