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Finding the Fourth Proportional to 625,198.64, 935,118.72 and 579,818.48

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Solution

The fourth proportional to 625,198.64, 935,118.72 and 579,818.48 is: 867,242.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,198.64 : 935,118.72 = 579,818.48 : x
  2. Step 2: Convert to fraction form
    625,198.64/935,118.72 = 579,818.48/x
  3. Step 3: Cross multiply
    625,198.64x = 935,118.72 × 579,818.48
  4. Step 4: Simplify right side
    625,198.64x = 542,199,114,849.95
  5. Step 5: Solve for x
    x = 542,199,114,849.95/625,198.64
  6. Step 6: Final answer
    x = 867,242.95

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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.