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Finding the Fourth Proportional to 3,058.71, 4,588.07 and 867.63

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Solution

The fourth proportional to 3,058.71, 4,588.07 and 867.63 is: 1,301.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,058.71 : 4,588.07 = 867.63 : x
  2. Step 2: Convert to fraction form
    3,058.71/4,588.07 = 867.63/x
  3. Step 3: Cross multiply
    3,058.71x = 4,588.07 × 867.63
  4. Step 4: Simplify right side
    3,058.71x = 3,980,742.84
  5. Step 5: Solve for x
    x = 3,980,742.84/3,058.71
  6. Step 6: Final answer
    x = 1,301.45

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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.