Home / 383,203.19-528,862.01-211,138.83

Finding the Fourth Proportional to 383,203.19, 528,862.01 and 211,138.83

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Solution

The fourth proportional to 383,203.19, 528,862.01 and 211,138.83 is: 291,394.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,203.19 : 528,862.01 = 211,138.83 : x
  2. Step 2: Convert to fraction form
    383,203.19/528,862.01 = 211,138.83/x
  3. Step 3: Cross multiply
    383,203.19x = 528,862.01 × 211,138.83
  4. Step 4: Simplify right side
    383,203.19x = 111,663,304,967.15
  5. Step 5: Solve for x
    x = 111,663,304,967.15/383,203.19
  6. Step 6: Final answer
    x = 291,394.51

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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.