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Finding the Fourth Proportional to 487,058.40, 730,587.60 and 132,116.40

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Solution

The fourth proportional to 487,058.40, 730,587.60 and 132,116.40 is: 198,174.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,058.40 : 730,587.60 = 132,116.40 : x
  2. Step 2: Convert to fraction form
    487,058.40/730,587.60 = 132,116.40/x
  3. Step 3: Cross multiply
    487,058.40x = 730,587.60 × 132,116.40
  4. Step 4: Simplify right side
    487,058.40x = 96,522,603,596.64
  5. Step 5: Solve for x
    x = 96,522,603,596.64/487,058.40
  6. Step 6: Final answer
    x = 198,174.60

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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.