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Finding the Fourth Proportional to 647,103.60, 970,655.40 and 367,167.60

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Solution

The fourth proportional to 647,103.60, 970,655.40 and 367,167.60 is: 550,751.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,103.60 : 970,655.40 = 367,167.60 : x
  2. Step 2: Convert to fraction form
    647,103.60/970,655.40 = 367,167.60/x
  3. Step 3: Cross multiply
    647,103.60x = 970,655.40 × 367,167.60
  4. Step 4: Simplify right side
    647,103.60x = 356,393,213,645.04
  5. Step 5: Solve for x
    x = 356,393,213,645.04/647,103.60
  6. Step 6: Final answer
    x = 550,751.40

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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.