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Finding the Fourth Proportional to 347,124.60, 479,025.60 and 196,221.60

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Solution

The fourth proportional to 347,124.60, 479,025.60 and 196,221.60 is: 270,782.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,124.60 : 479,025.60 = 196,221.60 : x
  2. Step 2: Convert to fraction form
    347,124.60/479,025.60 = 196,221.60/x
  3. Step 3: Cross multiply
    347,124.60x = 479,025.60 × 196,221.60
  4. Step 4: Simplify right side
    347,124.60x = 93,995,169,672.96
  5. Step 5: Solve for x
    x = 93,995,169,672.96/347,124.60
  6. Step 6: Final answer
    x = 270,782.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.