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Finding the Fourth Proportional to 317,520.06, 476,352.72 and 137,635.59

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Solution

The fourth proportional to 317,520.06, 476,352.72 and 137,635.59 is: 206,484.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,520.06 : 476,352.72 = 137,635.59 : x
  2. Step 2: Convert to fraction form
    317,520.06/476,352.72 = 137,635.59/x
  3. Step 3: Cross multiply
    317,520.06x = 476,352.72 × 137,635.59
  4. Step 4: Simplify right side
    317,520.06x = 65,563,087,665.30
  5. Step 5: Solve for x
    x = 65,563,087,665.30/317,520.06
  6. Step 6: Final answer
    x = 206,484.87

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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.