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Finding the Fourth Proportional to 267,445.56, 398,811.21 and 265,047.15

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Solution

The fourth proportional to 267,445.56, 398,811.21 and 265,047.15 is: 395,234.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,445.56 : 398,811.21 = 265,047.15 : x
  2. Step 2: Convert to fraction form
    267,445.56/398,811.21 = 265,047.15/x
  3. Step 3: Cross multiply
    267,445.56x = 398,811.21 × 265,047.15
  4. Step 4: Simplify right side
    267,445.56x = 105,703,774,598.55
  5. Step 5: Solve for x
    x = 105,703,774,598.55/267,445.56
  6. Step 6: Final answer
    x = 395,234.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.