Home / 728,584.25-1,092,967.92-391,161.11

Finding the Fourth Proportional to 728,584.25, 1,092,967.92 and 391,161.11

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Solution

The fourth proportional to 728,584.25, 1,092,967.92 and 391,161.11 is: 586,790.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,584.25 : 1,092,967.92 = 391,161.11 : x
  2. Step 2: Convert to fraction form
    728,584.25/1,092,967.92 = 391,161.11/x
  3. Step 3: Cross multiply
    728,584.25x = 1,092,967.92 × 391,161.11
  4. Step 4: Simplify right side
    728,584.25x = 427,526,539,316.75
  5. Step 5: Solve for x
    x = 427,526,539,316.75/728,584.25
  6. Step 6: Final answer
    x = 586,790.81

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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.