Home / 423,631.68-635,593.34-265,675.20

Finding the Fourth Proportional to 423,631.68, 635,593.34 and 265,675.20

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Solution

The fourth proportional to 423,631.68, 635,593.34 and 265,675.20 is: 398,604.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,631.68 : 635,593.34 = 265,675.20 : x
  2. Step 2: Convert to fraction form
    423,631.68/635,593.34 = 265,675.20/x
  3. Step 3: Cross multiply
    423,631.68x = 635,593.34 × 265,675.20
  4. Step 4: Simplify right side
    423,631.68x = 168,861,387,723.17
  5. Step 5: Solve for x
    x = 168,861,387,723.17/423,631.68
  6. Step 6: Final answer
    x = 398,604.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.