Home / 638,717.08-881,399.88-366,593.43

Finding the Fourth Proportional to 638,717.08, 881,399.88 and 366,593.43

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Solution

The fourth proportional to 638,717.08, 881,399.88 and 366,593.43 is: 505,881.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,717.08 : 881,399.88 = 366,593.43 : x
  2. Step 2: Convert to fraction form
    638,717.08/881,399.88 = 366,593.43/x
  3. Step 3: Cross multiply
    638,717.08x = 881,399.88 × 366,593.43
  4. Step 4: Simplify right side
    638,717.08x = 323,115,405,210.79
  5. Step 5: Solve for x
    x = 323,115,405,210.79/638,717.08
  6. Step 6: Final answer
    x = 505,881.89

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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.