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Finding the Fourth Proportional to 696,046.84, 960,635.98 and 394,251

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Solution

The fourth proportional to 696,046.84, 960,635.98 and 394,251 is: 544,118.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,046.84 : 960,635.98 = 394,251 : x
  2. Step 2: Convert to fraction form
    696,046.84/960,635.98 = 394,251/x
  3. Step 3: Cross multiply
    696,046.84x = 960,635.98 × 394,251
  4. Step 4: Simplify right side
    696,046.84x = 378,731,695,750.98
  5. Step 5: Solve for x
    x = 378,731,695,750.98/696,046.84
  6. Step 6: Final answer
    x = 544,118.12

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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.