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Finding the Fourth Proportional to 587,156.91, 810,279.63 and 329,034.48

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Solution

The fourth proportional to 587,156.91, 810,279.63 and 329,034.48 is: 454,069.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,156.91 : 810,279.63 = 329,034.48 : x
  2. Step 2: Convert to fraction form
    587,156.91/810,279.63 = 329,034.48/x
  3. Step 3: Cross multiply
    587,156.91x = 810,279.63 × 329,034.48
  4. Step 4: Simplify right side
    587,156.91x = 266,609,936,711.64
  5. Step 5: Solve for x
    x = 266,609,936,711.64/587,156.91
  6. Step 6: Final answer
    x = 454,069.32

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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.