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Finding the Fourth Proportional to 548,331.36, 756,693 and 306,614.40

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Solution

The fourth proportional to 548,331.36, 756,693 and 306,614.40 is: 423,125.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,331.36 : 756,693 = 306,614.40 : x
  2. Step 2: Convert to fraction form
    548,331.36/756,693 = 306,614.40/x
  3. Step 3: Cross multiply
    548,331.36x = 756,693 × 306,614.40
  4. Step 4: Simplify right side
    548,331.36x = 232,012,970,179.20
  5. Step 5: Solve for x
    x = 232,012,970,179.20/548,331.36
  6. Step 6: Final answer
    x = 423,125.48

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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.