Home / 472,910.35-709,234.23-131,275.28

Finding the Fourth Proportional to 472,910.35, 709,234.23 and 131,275.28

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Solution

The fourth proportional to 472,910.35, 709,234.23 and 131,275.28 is: 196,876.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,910.35 : 709,234.23 = 131,275.28 : x
  2. Step 2: Convert to fraction form
    472,910.35/709,234.23 = 131,275.28/x
  3. Step 3: Cross multiply
    472,910.35x = 709,234.23 × 131,275.28
  4. Step 4: Simplify right side
    472,910.35x = 93,104,923,655.78
  5. Step 5: Solve for x
    x = 93,104,923,655.78/472,910.35
  6. Step 6: Final answer
    x = 196,876.48

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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.