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Finding the Fourth Proportional to 574,203.06, 861,304.86 and 258,290.88

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Solution

The fourth proportional to 574,203.06, 861,304.86 and 258,290.88 is: 387,436.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,203.06 : 861,304.86 = 258,290.88 : x
  2. Step 2: Convert to fraction form
    574,203.06/861,304.86 = 258,290.88/x
  3. Step 3: Cross multiply
    574,203.06x = 861,304.86 × 258,290.88
  4. Step 4: Simplify right side
    574,203.06x = 222,467,190,237.68
  5. Step 5: Solve for x
    x = 222,467,190,237.68/574,203.06
  6. Step 6: Final answer
    x = 387,436.44

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.