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Finding the Fourth Proportional to 418,462.32, 577,481.76 and 227,476.08

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Solution

The fourth proportional to 418,462.32, 577,481.76 and 227,476.08 is: 313,919.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,462.32 : 577,481.76 = 227,476.08 : x
  2. Step 2: Convert to fraction form
    418,462.32/577,481.76 = 227,476.08/x
  3. Step 3: Cross multiply
    418,462.32x = 577,481.76 × 227,476.08
  4. Step 4: Simplify right side
    418,462.32x = 131,363,287,036.30
  5. Step 5: Solve for x
    x = 131,363,287,036.30/418,462.32
  6. Step 6: Final answer
    x = 313,919.03

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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.