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Finding the Fourth Proportional to 352,733.63, 486,778.82 and 199,803.57

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Solution

The fourth proportional to 352,733.63, 486,778.82 and 199,803.57 is: 275,732.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,733.63 : 486,778.82 = 199,803.57 : x
  2. Step 2: Convert to fraction form
    352,733.63/486,778.82 = 199,803.57/x
  3. Step 3: Cross multiply
    352,733.63x = 486,778.82 × 199,803.57
  4. Step 4: Simplify right side
    352,733.63x = 97,260,143,820.42
  5. Step 5: Solve for x
    x = 97,260,143,820.42/352,733.63
  6. Step 6: Final answer
    x = 275,732.56

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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.