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Finding the Fourth Proportional to 572,549.35, 790,215.29 and 330,971.97

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Solution

The fourth proportional to 572,549.35, 790,215.29 and 330,971.97 is: 456,797.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,549.35 : 790,215.29 = 330,971.97 : x
  2. Step 2: Convert to fraction form
    572,549.35/790,215.29 = 330,971.97/x
  3. Step 3: Cross multiply
    572,549.35x = 790,215.29 × 330,971.97
  4. Step 4: Simplify right side
    572,549.35x = 261,539,108,999.29
  5. Step 5: Solve for x
    x = 261,539,108,999.29/572,549.35
  6. Step 6: Final answer
    x = 456,797.49

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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.