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Finding the Fourth Proportional to 293,630.60, 440,445.90 and 72,014.60

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Solution

The fourth proportional to 293,630.60, 440,445.90 and 72,014.60 is: 108,021.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,630.60 : 440,445.90 = 72,014.60 : x
  2. Step 2: Convert to fraction form
    293,630.60/440,445.90 = 72,014.60/x
  3. Step 3: Cross multiply
    293,630.60x = 440,445.90 × 72,014.60
  4. Step 4: Simplify right side
    293,630.60x = 31,718,535,310.14
  5. Step 5: Solve for x
    x = 31,718,535,310.14/293,630.60
  6. Step 6: Final answer
    x = 108,021.90

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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.