Home / 905,203.85-1,357,805.57-231,286.41

Finding the Fourth Proportional to 905,203.85, 1,357,805.57 and 231,286.41

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Solution

The fourth proportional to 905,203.85, 1,357,805.57 and 231,286.41 is: 346,929.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,203.85 : 1,357,805.57 = 231,286.41 : x
  2. Step 2: Convert to fraction form
    905,203.85/1,357,805.57 = 231,286.41/x
  3. Step 3: Cross multiply
    905,203.85x = 1,357,805.57 × 231,286.41
  4. Step 4: Simplify right side
    905,203.85x = 314,041,974,606.87
  5. Step 5: Solve for x
    x = 314,041,974,606.87/905,203.85
  6. Step 6: Final answer
    x = 346,929.56

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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.