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Finding the Fourth Proportional to 988,706.68, 1,364,426 and 580,825.72

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Solution

The fourth proportional to 988,706.68, 1,364,426 and 580,825.72 is: 801,545.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,706.68 : 1,364,426 = 580,825.72 : x
  2. Step 2: Convert to fraction form
    988,706.68/1,364,426 = 580,825.72/x
  3. Step 3: Cross multiply
    988,706.68x = 1,364,426 × 580,825.72
  4. Step 4: Simplify right side
    988,706.68x = 792,493,713,836.72
  5. Step 5: Solve for x
    x = 792,493,713,836.72/988,706.68
  6. Step 6: Final answer
    x = 801,545.83

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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.