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Finding the Fourth Proportional to 956.37, 1,319.75 and 536.67

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Solution

The fourth proportional to 956.37, 1,319.75 and 536.67 is: 740.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    956.37 : 1,319.75 = 536.67 : x
  2. Step 2: Convert to fraction form
    956.37/1,319.75 = 536.67/x
  3. Step 3: Cross multiply
    956.37x = 1,319.75 × 536.67
  4. Step 4: Simplify right side
    956.37x = 708,267.55
  5. Step 5: Solve for x
    x = 708,267.55/956.37
  6. Step 6: Final answer
    x = 740.58

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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.