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Finding the Fourth Proportional to 572,885.38, 859,328.43 and 217,817.38

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Solution

The fourth proportional to 572,885.38, 859,328.43 and 217,817.38 is: 326,726.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,885.38 : 859,328.43 = 217,817.38 : x
  2. Step 2: Convert to fraction form
    572,885.38/859,328.43 = 217,817.38/x
  3. Step 3: Cross multiply
    572,885.38x = 859,328.43 × 217,817.38
  4. Step 4: Simplify right side
    572,885.38x = 187,176,667,182.11
  5. Step 5: Solve for x
    x = 187,176,667,182.11/572,885.38
  6. Step 6: Final answer
    x = 326,726.21

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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.