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Finding the Fourth Proportional to 547,578.09, 819,368.87 and 323,046.09

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Solution

The fourth proportional to 547,578.09, 819,368.87 and 323,046.09 is: 483,390.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,578.09 : 819,368.87 = 323,046.09 : x
  2. Step 2: Convert to fraction form
    547,578.09/819,368.87 = 323,046.09/x
  3. Step 3: Cross multiply
    547,578.09x = 819,368.87 × 323,046.09
  4. Step 4: Simplify right side
    547,578.09x = 264,693,908,105.99
  5. Step 5: Solve for x
    x = 264,693,908,105.99/547,578.09
  6. Step 6: Final answer
    x = 483,390.25

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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.