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Finding the Fourth Proportional to 664,496.60, 997,729.05 and 514,905.80

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Solution

The fourth proportional to 664,496.60, 997,729.05 and 514,905.80 is: 773,121.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,496.60 : 997,729.05 = 514,905.80 : x
  2. Step 2: Convert to fraction form
    664,496.60/997,729.05 = 514,905.80/x
  3. Step 3: Cross multiply
    664,496.60x = 997,729.05 × 514,905.80
  4. Step 4: Simplify right side
    664,496.60x = 513,736,474,673.49
  5. Step 5: Solve for x
    x = 513,736,474,673.49/664,496.60
  6. Step 6: Final answer
    x = 773,121.30

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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.