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Finding the Fourth Proportional to 266,034.70, 398,533.65 and 160,540.30

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Solution

The fourth proportional to 266,034.70, 398,533.65 and 160,540.30 is: 240,497.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,034.70 : 398,533.65 = 160,540.30 : x
  2. Step 2: Convert to fraction form
    266,034.70/398,533.65 = 160,540.30/x
  3. Step 3: Cross multiply
    266,034.70x = 398,533.65 × 160,540.30
  4. Step 4: Simplify right side
    266,034.70x = 63,980,711,731.10
  5. Step 5: Solve for x
    x = 63,980,711,731.10/266,034.70
  6. Step 6: Final answer
    x = 240,497.62

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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.