Home / 330,154.73-454,593.38-257,849.69

Finding the Fourth Proportional to 330,154.73, 454,593.38 and 257,849.69

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Solution

The fourth proportional to 330,154.73, 454,593.38 and 257,849.69 is: 355,035.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,154.73 : 454,593.38 = 257,849.69 : x
  2. Step 2: Convert to fraction form
    330,154.73/454,593.38 = 257,849.69/x
  3. Step 3: Cross multiply
    330,154.73x = 454,593.38 × 257,849.69
  4. Step 4: Simplify right side
    330,154.73x = 117,216,760,819.80
  5. Step 5: Solve for x
    x = 117,216,760,819.80/330,154.73
  6. Step 6: Final answer
    x = 355,035.84

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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.