Home / 863,546.47-1,294,679.97-413,839.13

Finding the Fourth Proportional to 863,546.47, 1,294,679.97 and 413,839.13

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Solution

The fourth proportional to 863,546.47, 1,294,679.97 and 413,839.13 is: 620,452.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,546.47 : 1,294,679.97 = 413,839.13 : x
  2. Step 2: Convert to fraction form
    863,546.47/1,294,679.97 = 413,839.13/x
  3. Step 3: Cross multiply
    863,546.47x = 1,294,679.97 × 413,839.13
  4. Step 4: Simplify right side
    863,546.47x = 535,789,225,939.83
  5. Step 5: Solve for x
    x = 535,789,225,939.83/863,546.47
  6. Step 6: Final answer
    x = 620,452.11

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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.