Home / 638,240.10-880,524.45-366,209.70

Finding the Fourth Proportional to 638,240.10, 880,524.45 and 366,209.70

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Solution

The fourth proportional to 638,240.10, 880,524.45 and 366,209.70 is: 505,227.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,240.10 : 880,524.45 = 366,209.70 : x
  2. Step 2: Convert to fraction form
    638,240.10/880,524.45 = 366,209.70/x
  3. Step 3: Cross multiply
    638,240.10x = 880,524.45 × 366,209.70
  4. Step 4: Simplify right side
    638,240.10x = 322,456,594,677.17
  5. Step 5: Solve for x
    x = 322,456,594,677.17/638,240.10
  6. Step 6: Final answer
    x = 505,227.73

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Double scale
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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.