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Finding the Fourth Proportional to 418,510.76, 577,551.42 and 227,524.88

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Solution

The fourth proportional to 418,510.76, 577,551.42 and 227,524.88 is: 313,987.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,510.76 : 577,551.42 = 227,524.88 : x
  2. Step 2: Convert to fraction form
    418,510.76/577,551.42 = 227,524.88/x
  3. Step 3: Cross multiply
    418,510.76x = 577,551.42 × 227,524.88
  4. Step 4: Simplify right side
    418,510.76x = 131,407,317,529.33
  5. Step 5: Solve for x
    x = 131,407,317,529.33/418,510.76
  6. Step 6: Final answer
    x = 313,987.91

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Half scale
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Double scale
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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.