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Finding the Fourth Proportional to 529.76, 793.08 and 474.16

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Solution

The fourth proportional to 529.76, 793.08 and 474.16 is: 709.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.76 : 793.08 = 474.16 : x
  2. Step 2: Convert to fraction form
    529.76/793.08 = 474.16/x
  3. Step 3: Cross multiply
    529.76x = 793.08 × 474.16
  4. Step 4: Simplify right side
    529.76x = 376,046.81
  5. Step 5: Solve for x
    x = 376,046.81/529.76
  6. Step 6: Final answer
    x = 709.84

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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.