Home / 644,058.20-966,087.30-325,193.60

Finding the Fourth Proportional to 644,058.20, 966,087.30 and 325,193.60

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Solution

The fourth proportional to 644,058.20, 966,087.30 and 325,193.60 is: 487,790.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,058.20 : 966,087.30 = 325,193.60 : x
  2. Step 2: Convert to fraction form
    644,058.20/966,087.30 = 325,193.60/x
  3. Step 3: Cross multiply
    644,058.20x = 966,087.30 × 325,193.60
  4. Step 4: Simplify right side
    644,058.20x = 314,165,407,001.28
  5. Step 5: Solve for x
    x = 314,165,407,001.28/644,058.20
  6. Step 6: Final answer
    x = 487,790.40

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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.