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Finding the Fourth Proportional to 696,363.75, 960,996.56 and 394,557.75

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Solution

The fourth proportional to 696,363.75, 960,996.56 and 394,557.75 is: 544,497.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,363.75 : 960,996.56 = 394,557.75 : x
  2. Step 2: Convert to fraction form
    696,363.75/960,996.56 = 394,557.75/x
  3. Step 3: Cross multiply
    696,363.75x = 960,996.56 × 394,557.75
  4. Step 4: Simplify right side
    696,363.75x = 379,168,638,498.55
  5. Step 5: Solve for x
    x = 379,168,638,498.55/696,363.75
  6. Step 6: Final answer
    x = 544,497.96

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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.