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Finding the Fourth Proportional to 527,925.09, 729,138.05 and 357,863.97

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Solution

The fourth proportional to 527,925.09, 729,138.05 and 357,863.97 is: 494,259.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,925.09 : 729,138.05 = 357,863.97 : x
  2. Step 2: Convert to fraction form
    527,925.09/729,138.05 = 357,863.97/x
  3. Step 3: Cross multiply
    527,925.09x = 729,138.05 × 357,863.97
  4. Step 4: Simplify right side
    527,925.09x = 260,932,241,550.98
  5. Step 5: Solve for x
    x = 260,932,241,550.98/527,925.09
  6. Step 6: Final answer
    x = 494,259.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.