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Finding the Fourth Proportional to 648,161.84, 894,320.52 and 376,072.04

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Solution

The fourth proportional to 648,161.84, 894,320.52 and 376,072.04 is: 518,896.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,161.84 : 894,320.52 = 376,072.04 : x
  2. Step 2: Convert to fraction form
    648,161.84/894,320.52 = 376,072.04/x
  3. Step 3: Cross multiply
    648,161.84x = 894,320.52 × 376,072.04
  4. Step 4: Simplify right side
    648,161.84x = 336,328,942,370.26
  5. Step 5: Solve for x
    x = 336,328,942,370.26/648,161.84
  6. Step 6: Final answer
    x = 518,896.55

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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.