Home / 382,687.06-528,093.66-212,917.54

Finding the Fourth Proportional to 382,687.06, 528,093.66 and 212,917.54

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Solution

The fourth proportional to 382,687.06, 528,093.66 and 212,917.54 is: 293,818.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,687.06 : 528,093.66 = 212,917.54 : x
  2. Step 2: Convert to fraction form
    382,687.06/528,093.66 = 212,917.54/x
  3. Step 3: Cross multiply
    382,687.06x = 528,093.66 × 212,917.54
  4. Step 4: Simplify right side
    382,687.06x = 112,440,402,976.80
  5. Step 5: Solve for x
    x = 112,440,402,976.80/382,687.06
  6. Step 6: Final answer
    x = 293,818.15

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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.