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Finding the Fourth Proportional to 395,012.56, 544,962.22 and 229,412.34

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Solution

The fourth proportional to 395,012.56, 544,962.22 and 229,412.34 is: 316,498.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,012.56 : 544,962.22 = 229,412.34 : x
  2. Step 2: Convert to fraction form
    395,012.56/544,962.22 = 229,412.34/x
  3. Step 3: Cross multiply
    395,012.56x = 544,962.22 × 229,412.34
  4. Step 4: Simplify right side
    395,012.56x = 125,021,058,101.80
  5. Step 5: Solve for x
    x = 125,021,058,101.80/395,012.56
  6. Step 6: Final answer
    x = 316,498.94

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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.