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Finding the Fourth Proportional to 696,045.84, 960,634.60 and 394,250

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Solution

The fourth proportional to 696,045.84, 960,634.60 and 394,250 is: 544,116.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,045.84 : 960,634.60 = 394,250 : x
  2. Step 2: Convert to fraction form
    696,045.84/960,634.60 = 394,250/x
  3. Step 3: Cross multiply
    696,045.84x = 960,634.60 × 394,250
  4. Step 4: Simplify right side
    696,045.84x = 378,730,191,050
  5. Step 5: Solve for x
    x = 378,730,191,050/696,045.84
  6. Step 6: Final answer
    x = 544,116.74

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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.