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Finding the Fourth Proportional to 317,200.39, 475,689.92 and 127,611.59

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Solution

The fourth proportional to 317,200.39, 475,689.92 and 127,611.59 is: 191,372.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,200.39 : 475,689.92 = 127,611.59 : x
  2. Step 2: Convert to fraction form
    317,200.39/475,689.92 = 127,611.59/x
  3. Step 3: Cross multiply
    317,200.39x = 475,689.92 × 127,611.59
  4. Step 4: Simplify right side
    317,200.39x = 60,703,544,021.67
  5. Step 5: Solve for x
    x = 60,703,544,021.67/317,200.39
  6. Step 6: Final answer
    x = 191,372.86

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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.