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Finding the Fourth Proportional to 317,600.20, 476,745.90 and 177,632.20

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Solution

The fourth proportional to 317,600.20, 476,745.90 and 177,632.20 is: 266,641.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,600.20 : 476,745.90 = 177,632.20 : x
  2. Step 2: Convert to fraction form
    317,600.20/476,745.90 = 177,632.20/x
  3. Step 3: Cross multiply
    317,600.20x = 476,745.90 × 177,632.20
  4. Step 4: Simplify right side
    317,600.20x = 84,685,423,057.98
  5. Step 5: Solve for x
    x = 84,685,423,057.98/317,600.20
  6. Step 6: Final answer
    x = 266,641.59

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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.