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Finding the Fourth Proportional to 794.64, 1,191.12 and 469.56

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Solution

The fourth proportional to 794.64, 1,191.12 and 469.56 is: 703.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    794.64 : 1,191.12 = 469.56 : x
  2. Step 2: Convert to fraction form
    794.64/1,191.12 = 469.56/x
  3. Step 3: Cross multiply
    794.64x = 1,191.12 × 469.56
  4. Step 4: Simplify right side
    794.64x = 559,302.31
  5. Step 5: Solve for x
    x = 559,302.31/794.64
  6. Step 6: Final answer
    x = 703.84

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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.