Home / 383,120.51-528,153.94-268,042.61

Finding the Fourth Proportional to 383,120.51, 528,153.94 and 268,042.61

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Solution

The fourth proportional to 383,120.51, 528,153.94 and 268,042.61 is: 369,512.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,120.51 : 528,153.94 = 268,042.61 : x
  2. Step 2: Convert to fraction form
    383,120.51/528,153.94 = 268,042.61/x
  3. Step 3: Cross multiply
    383,120.51x = 528,153.94 × 268,042.61
  4. Step 4: Simplify right side
    383,120.51x = 141,567,762,214.82
  5. Step 5: Solve for x
    x = 141,567,762,214.82/383,120.51
  6. Step 6: Final answer
    x = 369,512.36

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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.