Home / 411,811.32-616,552.20-261,679.44

Finding the Fourth Proportional to 411,811.32, 616,552.20 and 261,679.44

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Solution

The fourth proportional to 411,811.32, 616,552.20 and 261,679.44 is: 391,779.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,811.32 : 616,552.20 = 261,679.44 : x
  2. Step 2: Convert to fraction form
    411,811.32/616,552.20 = 261,679.44/x
  3. Step 3: Cross multiply
    411,811.32x = 616,552.20 × 261,679.44
  4. Step 4: Simplify right side
    411,811.32x = 161,339,034,426.77
  5. Step 5: Solve for x
    x = 161,339,034,426.77/411,811.32
  6. Step 6: Final answer
    x = 391,779.02

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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.