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Finding the Fourth Proportional to 267,145.60, 400,718.40 and 177,770.20

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Solution

The fourth proportional to 267,145.60, 400,718.40 and 177,770.20 is: 266,655.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,145.60 : 400,718.40 = 177,770.20 : x
  2. Step 2: Convert to fraction form
    267,145.60/400,718.40 = 177,770.20/x
  3. Step 3: Cross multiply
    267,145.60x = 400,718.40 × 177,770.20
  4. Step 4: Simplify right side
    267,145.60x = 71,235,790,111.68
  5. Step 5: Solve for x
    x = 71,235,790,111.68/267,145.60
  6. Step 6: Final answer
    x = 266,655.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.