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Finding the Fourth Proportional to 482,428.74, 665,734.65 and 267,588.79

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Solution

The fourth proportional to 482,428.74, 665,734.65 and 267,588.79 is: 369,263.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,428.74 : 665,734.65 = 267,588.79 : x
  2. Step 2: Convert to fraction form
    482,428.74/665,734.65 = 267,588.79/x
  3. Step 3: Cross multiply
    482,428.74x = 665,734.65 × 267,588.79
  4. Step 4: Simplify right side
    482,428.74x = 178,143,128,659.16
  5. Step 5: Solve for x
    x = 178,143,128,659.16/482,428.74
  6. Step 6: Final answer
    x = 369,263.10

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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.