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Finding the Fourth Proportional to 662,644.83, 914,425.86 and 404,952.90

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Solution

The fourth proportional to 662,644.83, 914,425.86 and 404,952.90 is: 558,820.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,644.83 : 914,425.86 = 404,952.90 : x
  2. Step 2: Convert to fraction form
    662,644.83/914,425.86 = 404,952.90/x
  3. Step 3: Cross multiply
    662,644.83x = 914,425.86 × 404,952.90
  4. Step 4: Simplify right side
    662,644.83x = 370,299,403,646.02
  5. Step 5: Solve for x
    x = 370,299,403,646.02/662,644.83
  6. Step 6: Final answer
    x = 558,820.33

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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.