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Finding the Fourth Proportional to 360,620.90, 497,650.69 and 199,475.82

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Solution

The fourth proportional to 360,620.90, 497,650.69 and 199,475.82 is: 275,273.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,620.90 : 497,650.69 = 199,475.82 : x
  2. Step 2: Convert to fraction form
    360,620.90/497,650.69 = 199,475.82/x
  3. Step 3: Cross multiply
    360,620.90x = 497,650.69 × 199,475.82
  4. Step 4: Simplify right side
    360,620.90x = 99,269,279,461.32
  5. Step 5: Solve for x
    x = 99,269,279,461.32/360,620.90
  6. Step 6: Final answer
    x = 275,273.23

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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.