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Finding the Fourth Proportional to 216,455.30, 324,682.92 and 58,679.64

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Solution

The fourth proportional to 216,455.30, 324,682.92 and 58,679.64 is: 88,019.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,455.30 : 324,682.92 = 58,679.64 : x
  2. Step 2: Convert to fraction form
    216,455.30/324,682.92 = 58,679.64/x
  3. Step 3: Cross multiply
    216,455.30x = 324,682.92 × 58,679.64
  4. Step 4: Simplify right side
    216,455.30x = 19,052,276,859.75
  5. Step 5: Solve for x
    x = 19,052,276,859.75/216,455.30
  6. Step 6: Final answer
    x = 88,019.45

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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.