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Finding the Fourth Proportional to 461,068.88, 636,433.80 and 270,144.08

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Solution

The fourth proportional to 461,068.88, 636,433.80 and 270,144.08 is: 372,891.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,068.88 : 636,433.80 = 270,144.08 : x
  2. Step 2: Convert to fraction form
    461,068.88/636,433.80 = 270,144.08/x
  3. Step 3: Cross multiply
    461,068.88x = 636,433.80 × 270,144.08
  4. Step 4: Simplify right side
    461,068.88x = 171,928,823,381.90
  5. Step 5: Solve for x
    x = 171,928,823,381.90/461,068.88
  6. Step 6: Final answer
    x = 372,891.84

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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.