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Finding the Fourth Proportional to 323,321.88, 446,183.89 and 187,434.51

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Solution

The fourth proportional to 323,321.88, 446,183.89 and 187,434.51 is: 258,659.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,321.88 : 446,183.89 = 187,434.51 : x
  2. Step 2: Convert to fraction form
    323,321.88/446,183.89 = 187,434.51/x
  3. Step 3: Cross multiply
    323,321.88x = 446,183.89 × 187,434.51
  4. Step 4: Simplify right side
    323,321.88x = 83,630,258,792.04
  5. Step 5: Solve for x
    x = 83,630,258,792.04/323,321.88
  6. Step 6: Final answer
    x = 258,659.45

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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.