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Finding the Fourth Proportional to 664,515.80, 996,773.70 and 465,061.40

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Solution

The fourth proportional to 664,515.80, 996,773.70 and 465,061.40 is: 697,592.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,515.80 : 996,773.70 = 465,061.40 : x
  2. Step 2: Convert to fraction form
    664,515.80/996,773.70 = 465,061.40/x
  3. Step 3: Cross multiply
    664,515.80x = 996,773.70 × 465,061.40
  4. Step 4: Simplify right side
    664,515.80x = 463,560,972,405.18
  5. Step 5: Solve for x
    x = 463,560,972,405.18/664,515.80
  6. Step 6: Final answer
    x = 697,592.10

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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.