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Finding the Fourth Proportional to 408,625.44, 563,980.77 and 255,734.70

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Solution

The fourth proportional to 408,625.44, 563,980.77 and 255,734.70 is: 352,962.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,625.44 : 563,980.77 = 255,734.70 : x
  2. Step 2: Convert to fraction form
    408,625.44/563,980.77 = 255,734.70/x
  3. Step 3: Cross multiply
    408,625.44x = 563,980.77 × 255,734.70
  4. Step 4: Simplify right side
    408,625.44x = 144,229,453,021.72
  5. Step 5: Solve for x
    x = 144,229,453,021.72/408,625.44
  6. Step 6: Final answer
    x = 352,962.49

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1.5x scale

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.