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Finding the Fourth Proportional to 484,383.30, 726,246.90 and 247,531.20

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Solution

The fourth proportional to 484,383.30, 726,246.90 and 247,531.20 is: 371,129.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,383.30 : 726,246.90 = 247,531.20 : x
  2. Step 2: Convert to fraction form
    484,383.30/726,246.90 = 247,531.20/x
  3. Step 3: Cross multiply
    484,383.30x = 726,246.90 × 247,531.20
  4. Step 4: Simplify right side
    484,383.30x = 179,768,766,653.28
  5. Step 5: Solve for x
    x = 179,768,766,653.28/484,383.30
  6. Step 6: Final answer
    x = 371,129.16

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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.