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Finding the Fourth Proportional to 590,387.52, 885,589.92 and 561,702.72

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Solution

The fourth proportional to 590,387.52, 885,589.92 and 561,702.72 is: 842,562.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,387.52 : 885,589.92 = 561,702.72 : x
  2. Step 2: Convert to fraction form
    590,387.52/885,589.92 = 561,702.72/x
  3. Step 3: Cross multiply
    590,387.52x = 885,589.92 × 561,702.72
  4. Step 4: Simplify right side
    590,387.52x = 497,438,266,868.58
  5. Step 5: Solve for x
    x = 497,438,266,868.58/590,387.52
  6. Step 6: Final answer
    x = 842,562.30

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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.