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Finding the Fourth Proportional to 635,407.98, 876,883.61 and 363,476.40

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Solution

The fourth proportional to 635,407.98, 876,883.61 and 363,476.40 is: 501,609.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,407.98 : 876,883.61 = 363,476.40 : x
  2. Step 2: Convert to fraction form
    635,407.98/876,883.61 = 363,476.40/x
  3. Step 3: Cross multiply
    635,407.98x = 876,883.61 × 363,476.40
  4. Step 4: Simplify right side
    635,407.98x = 318,726,497,781.80
  5. Step 5: Solve for x
    x = 318,726,497,781.80/635,407.98
  6. Step 6: Final answer
    x = 501,609.21

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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.