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Finding the Fourth Proportional to 664,515.20, 996,772.80 and 465,060.80

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Solution

The fourth proportional to 664,515.20, 996,772.80 and 465,060.80 is: 697,591.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,515.20 : 996,772.80 = 465,060.80 : x
  2. Step 2: Convert to fraction form
    664,515.20/996,772.80 = 465,060.80/x
  3. Step 3: Cross multiply
    664,515.20x = 996,772.80 × 465,060.80
  4. Step 4: Simplify right side
    664,515.20x = 463,559,955,786.24
  5. Step 5: Solve for x
    x = 463,559,955,786.24/664,515.20
  6. Step 6: Final answer
    x = 697,591.20

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Similar ratio
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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.