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Finding the Fourth Proportional to 756,804.84, 1,044,398.87 and 412,638

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Solution

The fourth proportional to 756,804.84, 1,044,398.87 and 412,638 is: 569,444.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,804.84 : 1,044,398.87 = 412,638 : x
  2. Step 2: Convert to fraction form
    756,804.84/1,044,398.87 = 412,638/x
  3. Step 3: Cross multiply
    756,804.84x = 1,044,398.87 × 412,638
  4. Step 4: Simplify right side
    756,804.84x = 430,958,660,919.06
  5. Step 5: Solve for x
    x = 430,958,660,919.06/756,804.84
  6. Step 6: Final answer
    x = 569,444.91

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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.