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Finding the Fourth Proportional to 482,616.80, 724,508.40 and 479,117.60

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Solution

The fourth proportional to 482,616.80, 724,508.40 and 479,117.60 is: 719,255.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,616.80 : 724,508.40 = 479,117.60 : x
  2. Step 2: Convert to fraction form
    482,616.80/724,508.40 = 479,117.60/x
  3. Step 3: Cross multiply
    482,616.80x = 724,508.40 × 479,117.60
  4. Step 4: Simplify right side
    482,616.80x = 347,124,725,787.84
  5. Step 5: Solve for x
    x = 347,124,725,787.84/482,616.80
  6. Step 6: Final answer
    x = 719,255.37

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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.