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Finding the Fourth Proportional to 403,753.40, 606,286.20 and 292,216.40

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Solution

The fourth proportional to 403,753.40, 606,286.20 and 292,216.40 is: 438,799.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,753.40 : 606,286.20 = 292,216.40 : x
  2. Step 2: Convert to fraction form
    403,753.40/606,286.20 = 292,216.40/x
  3. Step 3: Cross multiply
    403,753.40x = 606,286.20 × 292,216.40
  4. Step 4: Simplify right side
    403,753.40x = 177,166,770,733.68
  5. Step 5: Solve for x
    x = 177,166,770,733.68/403,753.40
  6. Step 6: Final answer
    x = 438,799.45

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1.5x scale

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.