Home / 690,923.09-1,036,286.21-217,596.14

Finding the Fourth Proportional to 690,923.09, 1,036,286.21 and 217,596.14

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Solution

The fourth proportional to 690,923.09, 1,036,286.21 and 217,596.14 is: 326,363.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,923.09 : 1,036,286.21 = 217,596.14 : x
  2. Step 2: Convert to fraction form
    690,923.09/1,036,286.21 = 217,596.14/x
  3. Step 3: Cross multiply
    690,923.09x = 1,036,286.21 × 217,596.14
  4. Step 4: Simplify right side
    690,923.09x = 225,491,872,961.82
  5. Step 5: Solve for x
    x = 225,491,872,961.82/690,923.09
  6. Step 6: Final answer
    x = 326,363.21

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Double scale
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Similar ratio
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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.