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Finding the Fourth Proportional to 275,195.80, 412,404.90 and 169,701.40

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Solution

The fourth proportional to 275,195.80, 412,404.90 and 169,701.40 is: 254,312.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,195.80 : 412,404.90 = 169,701.40 : x
  2. Step 2: Convert to fraction form
    275,195.80/412,404.90 = 169,701.40/x
  3. Step 3: Cross multiply
    275,195.80x = 412,404.90 × 169,701.40
  4. Step 4: Simplify right side
    275,195.80x = 69,985,688,896.86
  5. Step 5: Solve for x
    x = 69,985,688,896.86/275,195.80
  6. Step 6: Final answer
    x = 254,312.34

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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.