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Finding the Fourth Proportional to 1,077.53, 1,486.06 and 968.18

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Solution

The fourth proportional to 1,077.53, 1,486.06 and 968.18 is: 1,335.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077.53 : 1,486.06 = 968.18 : x
  2. Step 2: Convert to fraction form
    1,077.53/1,486.06 = 968.18/x
  3. Step 3: Cross multiply
    1,077.53x = 1,486.06 × 968.18
  4. Step 4: Simplify right side
    1,077.53x = 1,438,769.26
  5. Step 5: Solve for x
    x = 1,438,769.26/1,077.53
  6. Step 6: Final answer
    x = 1,335.25

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.