Home / 605,824.12-835,354.38-387,747.28

Finding the Fourth Proportional to 605,824.12, 835,354.38 and 387,747.28

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Solution

The fourth proportional to 605,824.12, 835,354.38 and 387,747.28 is: 534,654.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,824.12 : 835,354.38 = 387,747.28 : x
  2. Step 2: Convert to fraction form
    605,824.12/835,354.38 = 387,747.28/x
  3. Step 3: Cross multiply
    605,824.12x = 835,354.38 × 387,747.28
  4. Step 4: Simplify right side
    605,824.12x = 323,906,388,681.09
  5. Step 5: Solve for x
    x = 323,906,388,681.09/605,824.12
  6. Step 6: Final answer
    x = 534,654.16

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1.5x scale

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.