Home / 418,209.98-577,132.17-227,224.94

Finding the Fourth Proportional to 418,209.98, 577,132.17 and 227,224.94

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Solution

The fourth proportional to 418,209.98, 577,132.17 and 227,224.94 is: 313,571.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,209.98 : 577,132.17 = 227,224.94 : x
  2. Step 2: Convert to fraction form
    418,209.98/577,132.17 = 227,224.94/x
  3. Step 3: Cross multiply
    418,209.98x = 577,132.17 × 227,224.94
  4. Step 4: Simplify right side
    418,209.98x = 131,138,822,700.32
  5. Step 5: Solve for x
    x = 131,138,822,700.32/418,209.98
  6. Step 6: Final answer
    x = 313,571.72

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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.