Home / 587,623.38-810,920.61-319,351.38

Finding the Fourth Proportional to 587,623.38, 810,920.61 and 319,351.38

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Solution

The fourth proportional to 587,623.38, 810,920.61 and 319,351.38 is: 440,705.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,623.38 : 810,920.61 = 319,351.38 : x
  2. Step 2: Convert to fraction form
    587,623.38/810,920.61 = 319,351.38/x
  3. Step 3: Cross multiply
    587,623.38x = 810,920.61 × 319,351.38
  4. Step 4: Simplify right side
    587,623.38x = 258,968,615,873.94
  5. Step 5: Solve for x
    x = 258,968,615,873.94/587,623.38
  6. Step 6: Final answer
    x = 440,705.09

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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.