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Finding the Fourth Proportional to 572,886.38, 859,329.93 and 217,818.38

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Solution

The fourth proportional to 572,886.38, 859,329.93 and 217,818.38 is: 326,727.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,886.38 : 859,329.93 = 217,818.38 : x
  2. Step 2: Convert to fraction form
    572,886.38/859,329.93 = 217,818.38/x
  3. Step 3: Cross multiply
    572,886.38x = 859,329.93 × 217,818.38
  4. Step 4: Simplify right side
    572,886.38x = 187,177,853,238.11
  5. Step 5: Solve for x
    x = 187,177,853,238.11/572,886.38
  6. Step 6: Final answer
    x = 326,727.71

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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.