Home / 728,166.40-1,094,582.40-519,251.20

Finding the Fourth Proportional to 728,166.40, 1,094,582.40 and 519,251.20

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Solution

The fourth proportional to 728,166.40, 1,094,582.40 and 519,251.20 is: 780,540.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,166.40 : 1,094,582.40 = 519,251.20 : x
  2. Step 2: Convert to fraction form
    728,166.40/1,094,582.40 = 519,251.20/x
  3. Step 3: Cross multiply
    728,166.40x = 1,094,582.40 × 519,251.20
  4. Step 4: Simplify right side
    728,166.40x = 568,363,224,698.88
  5. Step 5: Solve for x
    x = 568,363,224,698.88/728,166.40
  6. Step 6: Final answer
    x = 780,540.31

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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.