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Finding the Fourth Proportional to 301,367.39, 415,728.45 and 229,622.85

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Solution

The fourth proportional to 301,367.39, 415,728.45 and 229,622.85 is: 316,758.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,367.39 : 415,728.45 = 229,622.85 : x
  2. Step 2: Convert to fraction form
    301,367.39/415,728.45 = 229,622.85/x
  3. Step 3: Cross multiply
    301,367.39x = 415,728.45 × 229,622.85
  4. Step 4: Simplify right side
    301,367.39x = 95,460,751,515.08
  5. Step 5: Solve for x
    x = 95,460,751,515.08/301,367.39
  6. Step 6: Final answer
    x = 316,758.73

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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.