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Finding the Fourth Proportional to 664,712.80, 997,069.20 and 244,152.70

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Solution

The fourth proportional to 664,712.80, 997,069.20 and 244,152.70 is: 366,229.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,712.80 : 997,069.20 = 244,152.70 : x
  2. Step 2: Convert to fraction form
    664,712.80/997,069.20 = 244,152.70/x
  3. Step 3: Cross multiply
    664,712.80x = 997,069.20 × 244,152.70
  4. Step 4: Simplify right side
    664,712.80x = 243,437,137,266.84
  5. Step 5: Solve for x
    x = 243,437,137,266.84/664,712.80
  6. Step 6: Final answer
    x = 366,229.05

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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.