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Finding the Fourth Proportional to 469,872.46, 648,401.82 and 255,010.63

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Solution

The fourth proportional to 469,872.46, 648,401.82 and 255,010.63 is: 351,902.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,872.46 : 648,401.82 = 255,010.63 : x
  2. Step 2: Convert to fraction form
    469,872.46/648,401.82 = 255,010.63/x
  3. Step 3: Cross multiply
    469,872.46x = 648,401.82 × 255,010.63
  4. Step 4: Simplify right side
    469,872.46x = 165,349,356,611.35
  5. Step 5: Solve for x
    x = 165,349,356,611.35/469,872.46
  6. Step 6: Final answer
    x = 351,902.63

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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.