Home / 445,983.30-669,077.10-193,306.20

Finding the Fourth Proportional to 445,983.30, 669,077.10 and 193,306.20

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Solution

The fourth proportional to 445,983.30, 669,077.10 and 193,306.20 is: 290,003.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,983.30 : 669,077.10 = 193,306.20 : x
  2. Step 2: Convert to fraction form
    445,983.30/669,077.10 = 193,306.20/x
  3. Step 3: Cross multiply
    445,983.30x = 669,077.10 × 193,306.20
  4. Step 4: Simplify right side
    445,983.30x = 129,336,751,708.02
  5. Step 5: Solve for x
    x = 129,336,751,708.02/445,983.30
  6. Step 6: Final answer
    x = 290,003.58

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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.