Home / 445,514.20-668,296.90-130,019.80

Finding the Fourth Proportional to 445,514.20, 668,296.90 and 130,019.80

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Solution

The fourth proportional to 445,514.20, 668,296.90 and 130,019.80 is: 195,037.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,514.20 : 668,296.90 = 130,019.80 : x
  2. Step 2: Convert to fraction form
    445,514.20/668,296.90 = 130,019.80/x
  3. Step 3: Cross multiply
    445,514.20x = 668,296.90 × 130,019.80
  4. Step 4: Simplify right side
    445,514.20x = 86,891,829,278.62
  5. Step 5: Solve for x
    x = 86,891,829,278.62/445,514.20
  6. Step 6: Final answer
    x = 195,037.17

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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.