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Finding the Fourth Proportional to 574,890.45, 861,681.76 and 349,754.61

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Solution

The fourth proportional to 574,890.45, 861,681.76 and 349,754.61 is: 524,234.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,890.45 : 861,681.76 = 349,754.61 : x
  2. Step 2: Convert to fraction form
    574,890.45/861,681.76 = 349,754.61/x
  3. Step 3: Cross multiply
    574,890.45x = 861,681.76 × 349,754.61
  4. Step 4: Simplify right side
    574,890.45x = 301,377,165,914.72
  5. Step 5: Solve for x
    x = 301,377,165,914.72/574,890.45
  6. Step 6: Final answer
    x = 524,234.08

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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.