Home / 664,784.80-997,177.20-591,301.60

Finding the Fourth Proportional to 664,784.80, 997,177.20 and 591,301.60

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Solution

The fourth proportional to 664,784.80, 997,177.20 and 591,301.60 is: 886,952.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,784.80 : 997,177.20 = 591,301.60 : x
  2. Step 2: Convert to fraction form
    664,784.80/997,177.20 = 591,301.60/x
  3. Step 3: Cross multiply
    664,784.80x = 997,177.20 × 591,301.60
  4. Step 4: Simplify right side
    664,784.80x = 589,632,473,843.52
  5. Step 5: Solve for x
    x = 589,632,473,843.52/664,784.80
  6. Step 6: Final answer
    x = 886,952.40

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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.