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Finding the Fourth Proportional to 415,810.61, 573,687.65 and 254,497.49

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Solution

The fourth proportional to 415,810.61, 573,687.65 and 254,497.49 is: 351,126.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,810.61 : 573,687.65 = 254,497.49 : x
  2. Step 2: Convert to fraction form
    415,810.61/573,687.65 = 254,497.49/x
  3. Step 3: Cross multiply
    415,810.61x = 573,687.65 × 254,497.49
  4. Step 4: Simplify right side
    415,810.61x = 146,002,064,736.80
  5. Step 5: Solve for x
    x = 146,002,064,736.80/415,810.61
  6. Step 6: Final answer
    x = 351,126.36

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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.