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Finding the Fourth Proportional to 574,963.05, 861,491.14 and 349,641.90

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Solution

The fourth proportional to 574,963.05, 861,491.14 and 349,641.90 is: 523,883.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,963.05 : 861,491.14 = 349,641.90 : x
  2. Step 2: Convert to fraction form
    574,963.05/861,491.14 = 349,641.90/x
  3. Step 3: Cross multiply
    574,963.05x = 861,491.14 × 349,641.90
  4. Step 4: Simplify right side
    574,963.05x = 301,213,399,022.77
  5. Step 5: Solve for x
    x = 301,213,399,022.77/574,963.05
  6. Step 6: Final answer
    x = 523,883.05

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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.