Home / 418,320.76-577,286.32-227,334.20

Finding the Fourth Proportional to 418,320.76, 577,286.32 and 227,334.20

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Solution

The fourth proportional to 418,320.76, 577,286.32 and 227,334.20 is: 313,723.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,320.76 : 577,286.32 = 227,334.20 : x
  2. Step 2: Convert to fraction form
    418,320.76/577,286.32 = 227,334.20/x
  3. Step 3: Cross multiply
    418,320.76x = 577,286.32 × 227,334.20
  4. Step 4: Simplify right side
    418,320.76x = 131,236,923,728.14
  5. Step 5: Solve for x
    x = 131,236,923,728.14/418,320.76
  6. Step 6: Final answer
    x = 313,723.19

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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.