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Finding the Fourth Proportional to 473,217.55, 708,694.72 and 272,930.72

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Solution

The fourth proportional to 473,217.55, 708,694.72 and 272,930.72 is: 408,743.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,217.55 : 708,694.72 = 272,930.72 : x
  2. Step 2: Convert to fraction form
    473,217.55/708,694.72 = 272,930.72/x
  3. Step 3: Cross multiply
    473,217.55x = 708,694.72 × 272,930.72
  4. Step 4: Simplify right side
    473,217.55x = 193,424,559,950.41
  5. Step 5: Solve for x
    x = 193,424,559,950.41/473,217.55
  6. Step 6: Final answer
    x = 408,743.42

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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.