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Finding the Fourth Proportional to 384,418.80, 577,211.40 and 295,772.40

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Solution

The fourth proportional to 384,418.80, 577,211.40 and 295,772.40 is: 444,107.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,418.80 : 577,211.40 = 295,772.40 : x
  2. Step 2: Convert to fraction form
    384,418.80/577,211.40 = 295,772.40/x
  3. Step 3: Cross multiply
    384,418.80x = 577,211.40 × 295,772.40
  4. Step 4: Simplify right side
    384,418.80x = 170,723,201,085.36
  5. Step 5: Solve for x
    x = 170,723,201,085.36/384,418.80
  6. Step 6: Final answer
    x = 444,107.31

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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.