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Finding the Fourth Proportional to 524,288.97, 784,741.92 and 271,220.97

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Solution

The fourth proportional to 524,288.97, 784,741.92 and 271,220.97 is: 405,956.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,288.97 : 784,741.92 = 271,220.97 : x
  2. Step 2: Convert to fraction form
    524,288.97/784,741.92 = 271,220.97/x
  3. Step 3: Cross multiply
    524,288.97x = 784,741.92 × 271,220.97
  4. Step 4: Simplify right side
    524,288.97x = 212,838,464,742.06
  5. Step 5: Solve for x
    x = 212,838,464,742.06/524,288.97
  6. Step 6: Final answer
    x = 405,956.40

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.