Home / 910,778.20-1,366,556.10-437,219.80

Finding the Fourth Proportional to 910,778.20, 1,366,556.10 and 437,219.80

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Solution

The fourth proportional to 910,778.20, 1,366,556.10 and 437,219.80 is: 656,016.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,778.20 : 1,366,556.10 = 437,219.80 : x
  2. Step 2: Convert to fraction form
    910,778.20/1,366,556.10 = 437,219.80/x
  3. Step 3: Cross multiply
    910,778.20x = 1,366,556.10 × 437,219.80
  4. Step 4: Simplify right side
    910,778.20x = 597,485,384,730.78
  5. Step 5: Solve for x
    x = 597,485,384,730.78/910,778.20
  6. Step 6: Final answer
    x = 656,016.34

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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.