Home / 621,279.41-931,809.77-165,876.30

Finding the Fourth Proportional to 621,279.41, 931,809.77 and 165,876.30

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Solution

The fourth proportional to 621,279.41, 931,809.77 and 165,876.30 is: 248,785.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,279.41 : 931,809.77 = 165,876.30 : x
  2. Step 2: Convert to fraction form
    621,279.41/931,809.77 = 165,876.30/x
  3. Step 3: Cross multiply
    621,279.41x = 931,809.77 × 165,876.30
  4. Step 4: Simplify right side
    621,279.41x = 154,565,156,122.07
  5. Step 5: Solve for x
    x = 154,565,156,122.07/621,279.41
  6. Step 6: Final answer
    x = 248,785.25

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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.