Home / 639,163.04-882,364.32-397,523.50

Finding the Fourth Proportional to 639,163.04, 882,364.32 and 397,523.50

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Solution

The fourth proportional to 639,163.04, 882,364.32 and 397,523.50 is: 548,781.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,163.04 : 882,364.32 = 397,523.50 : x
  2. Step 2: Convert to fraction form
    639,163.04/882,364.32 = 397,523.50/x
  3. Step 3: Cross multiply
    639,163.04x = 882,364.32 × 397,523.50
  4. Step 4: Simplify right side
    639,163.04x = 350,760,550,555.61
  5. Step 5: Solve for x
    x = 350,760,550,555.61/639,163.04
  6. Step 6: Final answer
    x = 548,781.03

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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.