Home / 638,249.75-880,785.89-347,864.55

Finding the Fourth Proportional to 638,249.75, 880,785.89 and 347,864.55

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Solution

The fourth proportional to 638,249.75, 880,785.89 and 347,864.55 is: 480,053.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,249.75 : 880,785.89 = 347,864.55 : x
  2. Step 2: Convert to fraction form
    638,249.75/880,785.89 = 347,864.55/x
  3. Step 3: Cross multiply
    638,249.75x = 880,785.89 × 347,864.55
  4. Step 4: Simplify right side
    638,249.75x = 306,394,185,531.88
  5. Step 5: Solve for x
    x = 306,394,185,531.88/638,249.75
  6. Step 6: Final answer
    x = 480,053.75

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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.