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Finding the Fourth Proportional to 552,969.69, 828,125.92 and 315,592.71

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Solution

The fourth proportional to 552,969.69, 828,125.92 and 315,592.71 is: 472,630.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,969.69 : 828,125.92 = 315,592.71 : x
  2. Step 2: Convert to fraction form
    552,969.69/828,125.92 = 315,592.71/x
  3. Step 3: Cross multiply
    552,969.69x = 828,125.92 × 315,592.71
  4. Step 4: Simplify right side
    552,969.69x = 261,350,503,314.04
  5. Step 5: Solve for x
    x = 261,350,503,314.04/552,969.69
  6. Step 6: Final answer
    x = 472,630.79

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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.