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Finding the Fourth Proportional to 482,345.57, 665,633.13 and 267,486.18

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Solution

The fourth proportional to 482,345.57, 665,633.13 and 267,486.18 is: 369,128.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,345.57 : 665,633.13 = 267,486.18 : x
  2. Step 2: Convert to fraction form
    482,345.57/665,633.13 = 267,486.18/x
  3. Step 3: Cross multiply
    482,345.57x = 665,633.13 × 267,486.18
  4. Step 4: Simplify right side
    482,345.57x = 178,047,663,225.14
  5. Step 5: Solve for x
    x = 178,047,663,225.14/482,345.57
  6. Step 6: Final answer
    x = 369,128.85

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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.