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Finding the Fourth Proportional to 502,677.92, 693,677.94 and 276,321.80

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Solution

The fourth proportional to 502,677.92, 693,677.94 and 276,321.80 is: 381,314.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,677.92 : 693,677.94 = 276,321.80 : x
  2. Step 2: Convert to fraction form
    502,677.92/693,677.94 = 276,321.80/x
  3. Step 3: Cross multiply
    502,677.92x = 693,677.94 × 276,321.80
  4. Step 4: Simplify right side
    502,677.92x = 191,678,337,001.09
  5. Step 5: Solve for x
    x = 191,678,337,001.09/502,677.92
  6. Step 6: Final answer
    x = 381,314.42

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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.