Home / 278,061.12-416,333.52-193,613.76

Finding the Fourth Proportional to 278,061.12, 416,333.52 and 193,613.76

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Solution

The fourth proportional to 278,061.12, 416,333.52 and 193,613.76 is: 289,892.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,061.12 : 416,333.52 = 193,613.76 : x
  2. Step 2: Convert to fraction form
    278,061.12/416,333.52 = 193,613.76/x
  3. Step 3: Cross multiply
    278,061.12x = 416,333.52 × 193,613.76
  4. Step 4: Simplify right side
    278,061.12x = 80,607,898,221.24
  5. Step 5: Solve for x
    x = 80,607,898,221.24/278,061.12
  6. Step 6: Final answer
    x = 289,892.73

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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.