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Finding the Fourth Proportional to 471,837.60, 651,142.80 and 267,881.76

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Solution

The fourth proportional to 471,837.60, 651,142.80 and 267,881.76 is: 369,680.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,837.60 : 651,142.80 = 267,881.76 : x
  2. Step 2: Convert to fraction form
    471,837.60/651,142.80 = 267,881.76/x
  3. Step 3: Cross multiply
    471,837.60x = 651,142.80 × 267,881.76
  4. Step 4: Simplify right side
    471,837.60x = 174,429,279,275.33
  5. Step 5: Solve for x
    x = 174,429,279,275.33/471,837.60
  6. Step 6: Final answer
    x = 369,680.75

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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.