Home / 664,588.80-996,883.20-591,105.60

Finding the Fourth Proportional to 664,588.80, 996,883.20 and 591,105.60

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Solution

The fourth proportional to 664,588.80, 996,883.20 and 591,105.60 is: 886,658.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,588.80 : 996,883.20 = 591,105.60 : x
  2. Step 2: Convert to fraction form
    664,588.80/996,883.20 = 591,105.60/x
  3. Step 3: Cross multiply
    664,588.80x = 996,883.20 × 591,105.60
  4. Step 4: Simplify right side
    664,588.80x = 589,263,242,065.92
  5. Step 5: Solve for x
    x = 589,263,242,065.92/664,588.80
  6. Step 6: Final answer
    x = 886,658.40

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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.