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Finding the Fourth Proportional to 296,928, 444,276 and 208,354.32

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Solution

The fourth proportional to 296,928, 444,276 and 208,354.32 is: 311,748.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,928 : 444,276 = 208,354.32 : x
  2. Step 2: Convert to fraction form
    296,928/444,276 = 208,354.32/x
  3. Step 3: Cross multiply
    296,928x = 444,276 × 208,354.32
  4. Step 4: Simplify right side
    296,928x = 92,566,823,872.32
  5. Step 5: Solve for x
    x = 92,566,823,872.32/296,928
  6. Step 6: Final answer
    x = 311,748.38

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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.