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Finding the Fourth Proportional to 502,908.24, 694,031.88 and 276,574.80

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Solution

The fourth proportional to 502,908.24, 694,031.88 and 276,574.80 is: 381,683.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,908.24 : 694,031.88 = 276,574.80 : x
  2. Step 2: Convert to fraction form
    502,908.24/694,031.88 = 276,574.80/x
  3. Step 3: Cross multiply
    502,908.24x = 694,031.88 × 276,574.80
  4. Step 4: Simplify right side
    502,908.24x = 191,951,728,404.62
  5. Step 5: Solve for x
    x = 191,951,728,404.62/502,908.24
  6. Step 6: Final answer
    x = 381,683.40

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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.