Home / 435,454.56-653,185.08-119,928.78

Finding the Fourth Proportional to 435,454.56, 653,185.08 and 119,928.78

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Solution

The fourth proportional to 435,454.56, 653,185.08 and 119,928.78 is: 179,894.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,454.56 : 653,185.08 = 119,928.78 : x
  2. Step 2: Convert to fraction form
    435,454.56/653,185.08 = 119,928.78/x
  3. Step 3: Cross multiply
    435,454.56x = 653,185.08 × 119,928.78
  4. Step 4: Simplify right side
    435,454.56x = 78,335,689,758.60
  5. Step 5: Solve for x
    x = 78,335,689,758.60/435,454.56
  6. Step 6: Final answer
    x = 179,894.06

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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.