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Finding the Fourth Proportional to 482,641.63, 666,045.55 and 267,781.17

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Solution

The fourth proportional to 482,641.63, 666,045.55 and 267,781.17 is: 369,538.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,641.63 : 666,045.55 = 267,781.17 : x
  2. Step 2: Convert to fraction form
    482,641.63/666,045.55 = 267,781.17/x
  3. Step 3: Cross multiply
    482,641.63x = 666,045.55 × 267,781.17
  4. Step 4: Simplify right side
    482,641.63x = 178,354,456,652.29
  5. Step 5: Solve for x
    x = 178,354,456,652.29/482,641.63
  6. Step 6: Final answer
    x = 369,538.07

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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.