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Finding the Fourth Proportional to 703,990.92, 971,498.43 and 381,700.02

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Solution

The fourth proportional to 703,990.92, 971,498.43 and 381,700.02 is: 526,741.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,990.92 : 971,498.43 = 381,700.02 : x
  2. Step 2: Convert to fraction form
    703,990.92/971,498.43 = 381,700.02/x
  3. Step 3: Cross multiply
    703,990.92x = 971,498.43 × 381,700.02
  4. Step 4: Simplify right side
    703,990.92x = 370,820,970,160.97
  5. Step 5: Solve for x
    x = 370,820,970,160.97/703,990.92
  6. Step 6: Final answer
    x = 526,741.13

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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.