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Finding the Fourth Proportional to 667,952.64, 921,913.74 and 614,152.44

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Solution

The fourth proportional to 667,952.64, 921,913.74 and 614,152.44 is: 847,658.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,952.64 : 921,913.74 = 614,152.44 : x
  2. Step 2: Convert to fraction form
    667,952.64/921,913.74 = 614,152.44/x
  3. Step 3: Cross multiply
    667,952.64x = 921,913.74 × 614,152.44
  4. Step 4: Simplify right side
    667,952.64x = 566,195,572,890.53
  5. Step 5: Solve for x
    x = 566,195,572,890.53/667,952.64
  6. Step 6: Final answer
    x = 847,658.26

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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.