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Finding the Fourth Proportional to 616,963.91, 851,453.57 and 345,057.10

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Solution

The fourth proportional to 616,963.91, 851,453.57 and 345,057.10 is: 476,203.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,963.91 : 851,453.57 = 345,057.10 : x
  2. Step 2: Convert to fraction form
    616,963.91/851,453.57 = 345,057.10/x
  3. Step 3: Cross multiply
    616,963.91x = 851,453.57 × 345,057.10
  4. Step 4: Simplify right side
    616,963.91x = 293,800,098,382.86
  5. Step 5: Solve for x
    x = 293,800,098,382.86/616,963.91
  6. Step 6: Final answer
    x = 476,203.06

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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.