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Finding the Fourth Proportional to 418,248.60, 577,184.88 and 227,262.76

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Solution

The fourth proportional to 418,248.60, 577,184.88 and 227,262.76 is: 313,623.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,248.60 : 577,184.88 = 227,262.76 : x
  2. Step 2: Convert to fraction form
    418,248.60/577,184.88 = 227,262.76/x
  3. Step 3: Cross multiply
    418,248.60x = 577,184.88 × 227,262.76
  4. Step 4: Simplify right side
    418,248.60x = 131,172,628,859.07
  5. Step 5: Solve for x
    x = 131,172,628,859.07/418,248.60
  6. Step 6: Final answer
    x = 313,623.59

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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.