Home / 638,279.20-957,443.10-238,877.92

Finding the Fourth Proportional to 638,279.20, 957,443.10 and 238,877.92

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Solution

The fourth proportional to 638,279.20, 957,443.10 and 238,877.92 is: 358,325.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,279.20 : 957,443.10 = 238,877.92 : x
  2. Step 2: Convert to fraction form
    638,279.20/957,443.10 = 238,877.92/x
  3. Step 3: Cross multiply
    638,279.20x = 957,443.10 × 238,877.92
  4. Step 4: Simplify right side
    638,279.20x = 228,712,012,956.95
  5. Step 5: Solve for x
    x = 228,712,012,956.95/638,279.20
  6. Step 6: Final answer
    x = 358,325.97

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1.5x scale

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.