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Finding the Fourth Proportional to 699,371.60, 965,134.28 and 412,910.14

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Solution

The fourth proportional to 699,371.60, 965,134.28 and 412,910.14 is: 569,816.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,371.60 : 965,134.28 = 412,910.14 : x
  2. Step 2: Convert to fraction form
    699,371.60/965,134.28 = 412,910.14/x
  3. Step 3: Cross multiply
    699,371.60x = 965,134.28 × 412,910.14
  4. Step 4: Simplify right side
    699,371.60x = 398,513,730,673.60
  5. Step 5: Solve for x
    x = 398,513,730,673.60/699,371.60
  6. Step 6: Final answer
    x = 569,816.86

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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.