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Finding the Fourth Proportional to 956.36, 1,317.98 and 746.19

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Solution

The fourth proportional to 956.36, 1,317.98 and 746.19 is: 1,028.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    956.36 : 1,317.98 = 746.19 : x
  2. Step 2: Convert to fraction form
    956.36/1,317.98 = 746.19/x
  3. Step 3: Cross multiply
    956.36x = 1,317.98 × 746.19
  4. Step 4: Simplify right side
    956.36x = 983,459.77
  5. Step 5: Solve for x
    x = 983,459.77/956.36
  6. Step 6: Final answer
    x = 1,028.34

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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.