Home / 382,388.16-527,699.04-212,629.44

Finding the Fourth Proportional to 382,388.16, 527,699.04 and 212,629.44

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Solution

The fourth proportional to 382,388.16, 527,699.04 and 212,629.44 is: 293,430.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,388.16 : 527,699.04 = 212,629.44 : x
  2. Step 2: Convert to fraction form
    382,388.16/527,699.04 = 212,629.44/x
  3. Step 3: Cross multiply
    382,388.16x = 527,699.04 × 212,629.44
  4. Step 4: Simplify right side
    382,388.16x = 112,204,351,363.74
  5. Step 5: Solve for x
    x = 112,204,351,363.74/382,388.16
  6. Step 6: Final answer
    x = 293,430.51

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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.