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Finding the Fourth Proportional to 4,058.76, 6,088.12 and 980.76

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Solution

The fourth proportional to 4,058.76, 6,088.12 and 980.76 is: 1,471.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,058.76 : 6,088.12 = 980.76 : x
  2. Step 2: Convert to fraction form
    4,058.76/6,088.12 = 980.76/x
  3. Step 3: Cross multiply
    4,058.76x = 6,088.12 × 980.76
  4. Step 4: Simplify right side
    4,058.76x = 5,970,984.57
  5. Step 5: Solve for x
    x = 5,970,984.57/4,058.76
  6. Step 6: Final answer
    x = 1,471.14

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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.