Home / 859,393.13-1,289,084.57-219,695.85

Finding the Fourth Proportional to 859,393.13, 1,289,084.57 and 219,695.85

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Solution

The fourth proportional to 859,393.13, 1,289,084.57 and 219,695.85 is: 329,542.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,393.13 : 1,289,084.57 = 219,695.85 : x
  2. Step 2: Convert to fraction form
    859,393.13/1,289,084.57 = 219,695.85/x
  3. Step 3: Cross multiply
    859,393.13x = 1,289,084.57 × 219,695.85
  4. Step 4: Simplify right side
    859,393.13x = 283,206,530,328.04
  5. Step 5: Solve for x
    x = 283,206,530,328.04/859,393.13
  6. Step 6: Final answer
    x = 329,542.46

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Double scale
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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.