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Finding the Fourth Proportional to 662,989.96, 914,686.24 and 433,678.04

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Solution

The fourth proportional to 662,989.96, 914,686.24 and 433,678.04 is: 598,318.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,989.96 : 914,686.24 = 433,678.04 : x
  2. Step 2: Convert to fraction form
    662,989.96/914,686.24 = 433,678.04/x
  3. Step 3: Cross multiply
    662,989.96x = 914,686.24 × 433,678.04
  4. Step 4: Simplify right side
    662,989.96x = 396,679,335,778.17
  5. Step 5: Solve for x
    x = 396,679,335,778.17/662,989.96
  6. Step 6: Final answer
    x = 598,318.77

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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.