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Finding the Fourth Proportional to 493,535.72, 681,079.25 and 275,744.44

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Solution

The fourth proportional to 493,535.72, 681,079.25 and 275,744.44 is: 380,527.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,535.72 : 681,079.25 = 275,744.44 : x
  2. Step 2: Convert to fraction form
    493,535.72/681,079.25 = 275,744.44/x
  3. Step 3: Cross multiply
    493,535.72x = 681,079.25 × 275,744.44
  4. Step 4: Simplify right side
    493,535.72x = 187,803,816,386.87
  5. Step 5: Solve for x
    x = 187,803,816,386.87/493,535.72
  6. Step 6: Final answer
    x = 380,527.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.