Home / 391,177.58-539,826.84-221,444.54

Finding the Fourth Proportional to 391,177.58, 539,826.84 and 221,444.54

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Solution

The fourth proportional to 391,177.58, 539,826.84 and 221,444.54 is: 305,594.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,177.58 : 539,826.84 = 221,444.54 : x
  2. Step 2: Convert to fraction form
    391,177.58/539,826.84 = 221,444.54/x
  3. Step 3: Cross multiply
    391,177.58x = 539,826.84 × 221,444.54
  4. Step 4: Simplify right side
    391,177.58x = 119,541,706,263.45
  5. Step 5: Solve for x
    x = 119,541,706,263.45/391,177.58
  6. Step 6: Final answer
    x = 305,594.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.