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Finding the Fourth Proportional to 550,108.92, 759,518.88 and 343,691.53

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Solution

The fourth proportional to 550,108.92, 759,518.88 and 343,691.53 is: 474,524.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,108.92 : 759,518.88 = 343,691.53 : x
  2. Step 2: Convert to fraction form
    550,108.92/759,518.88 = 343,691.53/x
  3. Step 3: Cross multiply
    550,108.92x = 759,518.88 × 343,691.53
  4. Step 4: Simplify right side
    550,108.92x = 261,040,204,879.59
  5. Step 5: Solve for x
    x = 261,040,204,879.59/550,108.92
  6. Step 6: Final answer
    x = 474,524.58

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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.