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Finding the Fourth Proportional to 439,257.39, 605,722.64 and 375,805.23

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Solution

The fourth proportional to 439,257.39, 605,722.64 and 375,805.23 is: 518,224.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,257.39 : 605,722.64 = 375,805.23 : x
  2. Step 2: Convert to fraction form
    439,257.39/605,722.64 = 375,805.23/x
  3. Step 3: Cross multiply
    439,257.39x = 605,722.64 × 375,805.23
  4. Step 4: Simplify right side
    439,257.39x = 227,633,734,162.38
  5. Step 5: Solve for x
    x = 227,633,734,162.38/439,257.39
  6. Step 6: Final answer
    x = 518,224.03

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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.