Home / 638,244.18-957,363.30-188,967.78

Finding the Fourth Proportional to 638,244.18, 957,363.30 and 188,967.78

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Solution

The fourth proportional to 638,244.18, 957,363.30 and 188,967.78 is: 283,450.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,244.18 : 957,363.30 = 188,967.78 : x
  2. Step 2: Convert to fraction form
    638,244.18/957,363.30 = 188,967.78/x
  3. Step 3: Cross multiply
    638,244.18x = 957,363.30 × 188,967.78
  4. Step 4: Simplify right side
    638,244.18x = 180,910,817,454.47
  5. Step 5: Solve for x
    x = 180,910,817,454.47/638,244.18
  6. Step 6: Final answer
    x = 283,450.79

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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.