Home / 638,734.32-957,938.04-189,350.19

Finding the Fourth Proportional to 638,734.32, 957,938.04 and 189,350.19

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Solution

The fourth proportional to 638,734.32, 957,938.04 and 189,350.19 is: 283,976.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,734.32 : 957,938.04 = 189,350.19 : x
  2. Step 2: Convert to fraction form
    638,734.32/957,938.04 = 189,350.19/x
  3. Step 3: Cross multiply
    638,734.32x = 957,938.04 × 189,350.19
  4. Step 4: Simplify right side
    638,734.32x = 181,385,749,882.23
  5. Step 5: Solve for x
    x = 181,385,749,882.23/638,734.32
  6. Step 6: Final answer
    x = 283,976.83

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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.