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Finding the Fourth Proportional to 336, 463.44 and 225.45

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Solution

The fourth proportional to 336, 463.44 and 225.45 is: 310.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    336 : 463.44 = 225.45 : x
  2. Step 2: Convert to fraction form
    336/463.44 = 225.45/x
  3. Step 3: Cross multiply
    336x = 463.44 × 225.45
  4. Step 4: Simplify right side
    336x = 104,482.55
  5. Step 5: Solve for x
    x = 104,482.55/336
  6. Step 6: Final answer
    x = 310.96

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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.