Home / 257,444.01-386,161.16-79,947.09

Finding the Fourth Proportional to 257,444.01, 386,161.16 and 79,947.09

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Solution

The fourth proportional to 257,444.01, 386,161.16 and 79,947.09 is: 119,919.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,444.01 : 386,161.16 = 79,947.09 : x
  2. Step 2: Convert to fraction form
    257,444.01/386,161.16 = 79,947.09/x
  3. Step 3: Cross multiply
    257,444.01x = 386,161.16 × 79,947.09
  4. Step 4: Simplify right side
    257,444.01x = 30,872,460,613.29
  5. Step 5: Solve for x
    x = 30,872,460,613.29/257,444.01
  6. Step 6: Final answer
    x = 119,919.13

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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.