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Finding the Fourth Proportional to 461,618.49, 637,139.80 and 270,693.39

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Solution

The fourth proportional to 461,618.49, 637,139.80 and 270,693.39 is: 373,619.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,618.49 : 637,139.80 = 270,693.39 : x
  2. Step 2: Convert to fraction form
    461,618.49/637,139.80 = 270,693.39/x
  3. Step 3: Cross multiply
    461,618.49x = 637,139.80 × 270,693.39
  4. Step 4: Simplify right side
    461,618.49x = 172,469,532,365.92
  5. Step 5: Solve for x
    x = 172,469,532,365.92/461,618.49
  6. Step 6: Final answer
    x = 373,619.20

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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.