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Finding the Fourth Proportional to 482,364.21, 665,618.67 and 267,503.61

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Solution

The fourth proportional to 482,364.21, 665,618.67 and 267,503.61 is: 369,130.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,364.21 : 665,618.67 = 267,503.61 : x
  2. Step 2: Convert to fraction form
    482,364.21/665,618.67 = 267,503.61/x
  3. Step 3: Cross multiply
    482,364.21x = 665,618.67 × 267,503.61
  4. Step 4: Simplify right side
    482,364.21x = 178,055,397,108.40
  5. Step 5: Solve for x
    x = 178,055,397,108.40/482,364.21
  6. Step 6: Final answer
    x = 369,130.61

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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.