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Finding the Fourth Proportional to 639,197.97, 957,560.52 and 535,382.73

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Solution

The fourth proportional to 639,197.97, 957,560.52 and 535,382.73 is: 802,038.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,197.97 : 957,560.52 = 535,382.73 : x
  2. Step 2: Convert to fraction form
    639,197.97/957,560.52 = 535,382.73/x
  3. Step 3: Cross multiply
    639,197.97x = 957,560.52 × 535,382.73
  4. Step 4: Simplify right side
    639,197.97x = 512,661,365,337.82
  5. Step 5: Solve for x
    x = 512,661,365,337.82/639,197.97
  6. Step 6: Final answer
    x = 802,038.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.