Home / 278,712.50-384,475.82-176,557.73

Finding the Fourth Proportional to 278,712.50, 384,475.82 and 176,557.73

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Solution

The fourth proportional to 278,712.50, 384,475.82 and 176,557.73 is: 243,556.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,712.50 : 384,475.82 = 176,557.73 : x
  2. Step 2: Convert to fraction form
    278,712.50/384,475.82 = 176,557.73/x
  3. Step 3: Cross multiply
    278,712.50x = 384,475.82 × 176,557.73
  4. Step 4: Simplify right side
    278,712.50x = 67,882,175,213.92
  5. Step 5: Solve for x
    x = 67,882,175,213.92/278,712.50
  6. Step 6: Final answer
    x = 243,556.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.