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Finding the Fourth Proportional to 643,597.20, 965,104.20 and 244,105.20

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Solution

The fourth proportional to 643,597.20, 965,104.20 and 244,105.20 is: 366,047.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,597.20 : 965,104.20 = 244,105.20 : x
  2. Step 2: Convert to fraction form
    643,597.20/965,104.20 = 244,105.20/x
  3. Step 3: Cross multiply
    643,597.20x = 965,104.20 × 244,105.20
  4. Step 4: Simplify right side
    643,597.20x = 235,586,953,761.84
  5. Step 5: Solve for x
    x = 235,586,953,761.84/643,597.20
  6. Step 6: Final answer
    x = 366,047.20

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.