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Finding the Fourth Proportional to 482,412.51, 665,770.13 and 267,621.75

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Solution

The fourth proportional to 482,412.51, 665,770.13 and 267,621.75 is: 369,340.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,412.51 : 665,770.13 = 267,621.75 : x
  2. Step 2: Convert to fraction form
    482,412.51/665,770.13 = 267,621.75/x
  3. Step 3: Cross multiply
    482,412.51x = 665,770.13 × 267,621.75
  4. Step 4: Simplify right side
    482,412.51x = 178,174,565,950.22
  5. Step 5: Solve for x
    x = 178,174,565,950.22/482,412.51
  6. Step 6: Final answer
    x = 369,340.68

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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.