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Finding the Fourth Proportional to 418,176.60, 577,080.60 and 227,191.56

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Solution

The fourth proportional to 418,176.60, 577,080.60 and 227,191.56 is: 313,522.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,176.60 : 577,080.60 = 227,191.56 : x
  2. Step 2: Convert to fraction form
    418,176.60/577,080.60 = 227,191.56/x
  3. Step 3: Cross multiply
    418,176.60x = 577,080.60 × 227,191.56
  4. Step 4: Simplify right side
    418,176.60x = 131,107,841,759.74
  5. Step 5: Solve for x
    x = 131,107,841,759.74/418,176.60
  6. Step 6: Final answer
    x = 313,522.66

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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.