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Finding the Fourth Proportional to 490,675.67, 736,077.90 and 170,792.90

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Solution

The fourth proportional to 490,675.67, 736,077.90 and 170,792.90 is: 256,211.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,675.67 : 736,077.90 = 170,792.90 : x
  2. Step 2: Convert to fraction form
    490,675.67/736,077.90 = 170,792.90/x
  3. Step 3: Cross multiply
    490,675.67x = 736,077.90 × 170,792.90
  4. Step 4: Simplify right side
    490,675.67x = 125,716,879,166.91
  5. Step 5: Solve for x
    x = 125,716,879,166.91/490,675.67
  6. Step 6: Final answer
    x = 256,211.76

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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.