Home / 382,669.11-528,108.66-212,903.64

Finding the Fourth Proportional to 382,669.11, 528,108.66 and 212,903.64

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Solution

The fourth proportional to 382,669.11, 528,108.66 and 212,903.64 is: 293,821.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,669.11 : 528,108.66 = 212,903.64 : x
  2. Step 2: Convert to fraction form
    382,669.11/528,108.66 = 212,903.64/x
  3. Step 3: Cross multiply
    382,669.11x = 528,108.66 × 212,903.64
  4. Step 4: Simplify right side
    382,669.11x = 112,436,256,029.52
  5. Step 5: Solve for x
    x = 112,436,256,029.52/382,669.11
  6. Step 6: Final answer
    x = 293,821.09

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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.