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Finding the Fourth Proportional to 657,084.77, 906,771.70 and 381,468.19

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Solution

The fourth proportional to 657,084.77, 906,771.70 and 381,468.19 is: 526,423.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,084.77 : 906,771.70 = 381,468.19 : x
  2. Step 2: Convert to fraction form
    657,084.77/906,771.70 = 381,468.19/x
  3. Step 3: Cross multiply
    657,084.77x = 906,771.70 × 381,468.19
  4. Step 4: Simplify right side
    657,084.77x = 345,904,560,455.48
  5. Step 5: Solve for x
    x = 345,904,560,455.48/657,084.77
  6. Step 6: Final answer
    x = 526,423.04

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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.