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Finding the Fourth Proportional to 956.16, 1,319.48 and 536.54

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Solution

The fourth proportional to 956.16, 1,319.48 and 536.54 is: 740.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    956.16 : 1,319.48 = 536.54 : x
  2. Step 2: Convert to fraction form
    956.16/1,319.48 = 536.54/x
  3. Step 3: Cross multiply
    956.16x = 1,319.48 × 536.54
  4. Step 4: Simplify right side
    956.16x = 707,953.80
  5. Step 5: Solve for x
    x = 707,953.80/956.16
  6. Step 6: Final answer
    x = 740.41

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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.