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Finding the Fourth Proportional to 423,641.25, 635,724.50 and 246,231.81

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Solution

The fourth proportional to 423,641.25, 635,724.50 and 246,231.81 is: 369,500.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,641.25 : 635,724.50 = 246,231.81 : x
  2. Step 2: Convert to fraction form
    423,641.25/635,724.50 = 246,231.81/x
  3. Step 3: Cross multiply
    423,641.25x = 635,724.50 × 246,231.81
  4. Step 4: Simplify right side
    423,641.25x = 156,535,593,065.19
  5. Step 5: Solve for x
    x = 156,535,593,065.19/423,641.25
  6. Step 6: Final answer
    x = 369,500.36

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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.