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Finding the Fourth Proportional to 662,991.46, 914,688.32 and 433,679.52

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Solution

The fourth proportional to 662,991.46, 914,688.32 and 433,679.52 is: 598,320.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,991.46 : 914,688.32 = 433,679.52 : x
  2. Step 2: Convert to fraction form
    662,991.46/914,688.32 = 433,679.52/x
  3. Step 3: Cross multiply
    662,991.46x = 914,688.32 × 433,679.52
  4. Step 4: Simplify right side
    662,991.46x = 396,681,591,567.21
  5. Step 5: Solve for x
    x = 396,681,591,567.21/662,991.46
  6. Step 6: Final answer
    x = 598,320.82

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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.