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Finding the Fourth Proportional to 587,570.49, 811,095.33 and 396,842.22

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Solution

The fourth proportional to 587,570.49, 811,095.33 and 396,842.22 is: 547,809.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,570.49 : 811,095.33 = 396,842.22 : x
  2. Step 2: Convert to fraction form
    587,570.49/811,095.33 = 396,842.22/x
  3. Step 3: Cross multiply
    587,570.49x = 811,095.33 × 396,842.22
  4. Step 4: Simplify right side
    587,570.49x = 321,876,871,388.83
  5. Step 5: Solve for x
    x = 321,876,871,388.83/587,570.49
  6. Step 6: Final answer
    x = 547,809.80

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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.