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Finding the Fourth Proportional to 482,071.76, 665,291.05 and 267,220.88

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Solution

The fourth proportional to 482,071.76, 665,291.05 and 267,220.88 is: 368,782.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,071.76 : 665,291.05 = 267,220.88 : x
  2. Step 2: Convert to fraction form
    482,071.76/665,291.05 = 267,220.88/x
  3. Step 3: Cross multiply
    482,071.76x = 665,291.05 × 267,220.88
  4. Step 4: Simplify right side
    482,071.76x = 177,779,659,837.12
  5. Step 5: Solve for x
    x = 177,779,659,837.12/482,071.76
  6. Step 6: Final answer
    x = 368,782.56

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1.5x scale

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.