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Finding the Fourth Proportional to 958.79, 1,434.54 and 592.67

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Solution

The fourth proportional to 958.79, 1,434.54 and 592.67 is: 886.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    958.79 : 1,434.54 = 592.67 : x
  2. Step 2: Convert to fraction form
    958.79/1,434.54 = 592.67/x
  3. Step 3: Cross multiply
    958.79x = 1,434.54 × 592.67
  4. Step 4: Simplify right side
    958.79x = 850,214.63
  5. Step 5: Solve for x
    x = 850,214.63/958.79
  6. Step 6: Final answer
    x = 886.76

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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.