Home / 393,868.34-543,535.53-215,020.34

Finding the Fourth Proportional to 393,868.34, 543,535.53 and 215,020.34

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Solution

The fourth proportional to 393,868.34, 543,535.53 and 215,020.34 is: 296,726.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,868.34 : 543,535.53 = 215,020.34 : x
  2. Step 2: Convert to fraction form
    393,868.34/543,535.53 = 215,020.34/x
  3. Step 3: Cross multiply
    393,868.34x = 543,535.53 × 215,020.34
  4. Step 4: Simplify right side
    393,868.34x = 116,871,191,745.00
  5. Step 5: Solve for x
    x = 116,871,191,745.00/393,868.34
  6. Step 6: Final answer
    x = 296,726.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.