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Finding the Fourth Proportional to 611,837.25, 844,359.19 and 418,649.97

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Solution

The fourth proportional to 611,837.25, 844,359.19 and 418,649.97 is: 577,753.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,837.25 : 844,359.19 = 418,649.97 : x
  2. Step 2: Convert to fraction form
    611,837.25/844,359.19 = 418,649.97/x
  3. Step 3: Cross multiply
    611,837.25x = 844,359.19 × 418,649.97
  4. Step 4: Simplify right side
    611,837.25x = 353,490,946,932.93
  5. Step 5: Solve for x
    x = 353,490,946,932.93/611,837.25
  6. Step 6: Final answer
    x = 577,753.23

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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.