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Finding the Fourth Proportional to 404,634.32, 558,395.42 and 223,346.32

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Solution

The fourth proportional to 404,634.32, 558,395.42 and 223,346.32 is: 308,217.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,634.32 : 558,395.42 = 223,346.32 : x
  2. Step 2: Convert to fraction form
    404,634.32/558,395.42 = 223,346.32/x
  3. Step 3: Cross multiply
    404,634.32x = 558,395.42 × 223,346.32
  4. Step 4: Simplify right side
    404,634.32x = 124,715,562,161.85
  5. Step 5: Solve for x
    x = 124,715,562,161.85/404,634.32
  6. Step 6: Final answer
    x = 308,217.95

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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.