Home / 690,909.75-1,036,221.66-185,350.88

Finding the Fourth Proportional to 690,909.75, 1,036,221.66 and 185,350.88

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Solution

The fourth proportional to 690,909.75, 1,036,221.66 and 185,350.88 is: 277,987.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,909.75 : 1,036,221.66 = 185,350.88 : x
  2. Step 2: Convert to fraction form
    690,909.75/1,036,221.66 = 185,350.88/x
  3. Step 3: Cross multiply
    690,909.75x = 1,036,221.66 × 185,350.88
  4. Step 4: Simplify right side
    690,909.75x = 192,064,599,146.62
  5. Step 5: Solve for x
    x = 192,064,599,146.62/690,909.75
  6. Step 6: Final answer
    x = 277,987.97

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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.