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Finding the Fourth Proportional to 484,424.30, 726,308.40 and 247,572.20

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Solution

The fourth proportional to 484,424.30, 726,308.40 and 247,572.20 is: 371,190.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,424.30 : 726,308.40 = 247,572.20 : x
  2. Step 2: Convert to fraction form
    484,424.30/726,308.40 = 247,572.20/x
  3. Step 3: Cross multiply
    484,424.30x = 726,308.40 × 247,572.20
  4. Step 4: Simplify right side
    484,424.30x = 179,813,768,466.48
  5. Step 5: Solve for x
    x = 179,813,768,466.48/484,424.30
  6. Step 6: Final answer
    x = 371,190.65

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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.