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Finding the Fourth Proportional to 335.52, 503.82 and 313.92

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Solution

The fourth proportional to 335.52, 503.82 and 313.92 is: 471.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.52 : 503.82 = 313.92 : x
  2. Step 2: Convert to fraction form
    335.52/503.82 = 313.92/x
  3. Step 3: Cross multiply
    335.52x = 503.82 × 313.92
  4. Step 4: Simplify right side
    335.52x = 158,159.17
  5. Step 5: Solve for x
    x = 158,159.17/335.52
  6. Step 6: Final answer
    x = 471.39

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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.