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Finding the Fourth Proportional to 580,612.70, 870,919.11 and 181,287.67

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Solution

The fourth proportional to 580,612.70, 870,919.11 and 181,287.67 is: 271,931.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,612.70 : 870,919.11 = 181,287.67 : x
  2. Step 2: Convert to fraction form
    580,612.70/870,919.11 = 181,287.67/x
  3. Step 3: Cross multiply
    580,612.70x = 870,919.11 × 181,287.67
  4. Step 4: Simplify right side
    580,612.70x = 157,886,891,855.78
  5. Step 5: Solve for x
    x = 157,886,891,855.78/580,612.70
  6. Step 6: Final answer
    x = 271,931.52

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Similar ratio
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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.