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Finding the Fourth Proportional to 424,925.80, 636,708.30 and 224,985.40

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Solution

The fourth proportional to 424,925.80, 636,708.30 and 224,985.40 is: 337,117.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,925.80 : 636,708.30 = 224,985.40 : x
  2. Step 2: Convert to fraction form
    424,925.80/636,708.30 = 224,985.40/x
  3. Step 3: Cross multiply
    424,925.80x = 636,708.30 × 224,985.40
  4. Step 4: Simplify right side
    424,925.80x = 143,250,071,558.82
  5. Step 5: Solve for x
    x = 143,250,071,558.82/424,925.80
  6. Step 6: Final answer
    x = 337,117.85

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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.