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Finding the Fourth Proportional to 662,990.46, 914,686.94 and 433,678.52

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Solution

The fourth proportional to 662,990.46, 914,686.94 and 433,678.52 is: 598,319.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,990.46 : 914,686.94 = 433,678.52 : x
  2. Step 2: Convert to fraction form
    662,990.46/914,686.94 = 433,678.52/x
  3. Step 3: Cross multiply
    662,990.46x = 914,686.94 × 433,678.52
  4. Step 4: Simplify right side
    662,990.46x = 396,680,078,402.53
  5. Step 5: Solve for x
    x = 396,680,078,402.53/662,990.46
  6. Step 6: Final answer
    x = 598,319.44

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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.