Home / 677,949.96-1,016,930.70-172,511.40

Finding the Fourth Proportional to 677,949.96, 1,016,930.70 and 172,511.40

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Solution

The fourth proportional to 677,949.96, 1,016,930.70 and 172,511.40 is: 258,768.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,949.96 : 1,016,930.70 = 172,511.40 : x
  2. Step 2: Convert to fraction form
    677,949.96/1,016,930.70 = 172,511.40/x
  3. Step 3: Cross multiply
    677,949.96x = 1,016,930.70 × 172,511.40
  4. Step 4: Simplify right side
    677,949.96x = 175,432,138,759.98
  5. Step 5: Solve for x
    x = 175,432,138,759.98/677,949.96
  6. Step 6: Final answer
    x = 258,768.57

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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.