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Finding the Fourth Proportional to 591,785.80, 887,678.70 and 367,399.60

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Solution

The fourth proportional to 591,785.80, 887,678.70 and 367,399.60 is: 551,099.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,785.80 : 887,678.70 = 367,399.60 : x
  2. Step 2: Convert to fraction form
    591,785.80/887,678.70 = 367,399.60/x
  3. Step 3: Cross multiply
    591,785.80x = 887,678.70 × 367,399.60
  4. Step 4: Simplify right side
    591,785.80x = 326,132,799,308.52
  5. Step 5: Solve for x
    x = 326,132,799,308.52/591,785.80
  6. Step 6: Final answer
    x = 551,099.40

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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.