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Finding the Fourth Proportional to 802,641.22, 1,107,690.13 and 476,147.53

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Solution

The fourth proportional to 802,641.22, 1,107,690.13 and 476,147.53 is: 657,110.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,641.22 : 1,107,690.13 = 476,147.53 : x
  2. Step 2: Convert to fraction form
    802,641.22/1,107,690.13 = 476,147.53/x
  3. Step 3: Cross multiply
    802,641.22x = 1,107,690.13 × 476,147.53
  4. Step 4: Simplify right side
    802,641.22x = 527,423,921,384.68
  5. Step 5: Solve for x
    x = 527,423,921,384.68/802,641.22
  6. Step 6: Final answer
    x = 657,110.44

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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.