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Finding the Fourth Proportional to 528, 792.32 and 224

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Solution

The fourth proportional to 528, 792.32 and 224 is: 336.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    528 : 792.32 = 224 : x
  2. Step 2: Convert to fraction form
    528/792.32 = 224/x
  3. Step 3: Cross multiply
    528x = 792.32 × 224
  4. Step 4: Simplify right side
    528x = 177,479.68
  5. Step 5: Solve for x
    x = 177,479.68/528
  6. Step 6: Final answer
    x = 336.14

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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.