Home / 1,279,695.10-1,920,205.05-522,091.90

Finding the Fourth Proportional to 1,279,695.10, 1,920,205.05 and 522,091.90

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Solution

The fourth proportional to 1,279,695.10, 1,920,205.05 and 522,091.90 is: 783,408.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,695.10 : 1,920,205.05 = 522,091.90 : x
  2. Step 2: Convert to fraction form
    1,279,695.10/1,920,205.05 = 522,091.90/x
  3. Step 3: Cross multiply
    1,279,695.10x = 1,920,205.05 × 522,091.90
  4. Step 4: Simplify right side
    1,279,695.10x = 1,002,523,502,944.10
  5. Step 5: Solve for x
    x = 1,002,523,502,944.10/1,279,695.10
  6. Step 6: Final answer
    x = 783,408.10

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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.