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Finding the Fourth Proportional to 267,515.16, 398,914.96 and 265,116.84

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Solution

The fourth proportional to 267,515.16, 398,914.96 and 265,116.84 is: 395,338.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,515.16 : 398,914.96 = 265,116.84 : x
  2. Step 2: Convert to fraction form
    267,515.16/398,914.96 = 265,116.84/x
  3. Step 3: Cross multiply
    267,515.16x = 398,914.96 × 265,116.84
  4. Step 4: Simplify right side
    267,515.16x = 105,759,073,623.93
  5. Step 5: Solve for x
    x = 105,759,073,623.93/267,515.16
  6. Step 6: Final answer
    x = 395,338.62

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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.