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Finding the Fourth Proportional to 547,560.09, 819,619.43 and 348,105.69

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Solution

The fourth proportional to 547,560.09, 819,619.43 and 348,105.69 is: 521,064.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,560.09 : 819,619.43 = 348,105.69 : x
  2. Step 2: Convert to fraction form
    547,560.09/819,619.43 = 348,105.69/x
  3. Step 3: Cross multiply
    547,560.09x = 819,619.43 × 348,105.69
  4. Step 4: Simplify right side
    547,560.09x = 285,314,185,477.03
  5. Step 5: Solve for x
    x = 285,314,185,477.03/547,560.09
  6. Step 6: Final answer
    x = 521,064.61

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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.