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Finding the Fourth Proportional to 529.86, 730.62 and 333.12

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Solution

The fourth proportional to 529.86, 730.62 and 333.12 is: 459.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.86 : 730.62 = 333.12 : x
  2. Step 2: Convert to fraction form
    529.86/730.62 = 333.12/x
  3. Step 3: Cross multiply
    529.86x = 730.62 × 333.12
  4. Step 4: Simplify right side
    529.86x = 243,384.13
  5. Step 5: Solve for x
    x = 243,384.13/529.86
  6. Step 6: Final answer
    x = 459.34

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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.