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Finding the Fourth Proportional to 216,410.40, 324,615.61 and 58,638.85

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Solution

The fourth proportional to 216,410.40, 324,615.61 and 58,638.85 is: 87,958.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,410.40 : 324,615.61 = 58,638.85 : x
  2. Step 2: Convert to fraction form
    216,410.40/324,615.61 = 58,638.85/x
  3. Step 3: Cross multiply
    216,410.40x = 324,615.61 × 58,638.85
  4. Step 4: Simplify right side
    216,410.40x = 19,035,085,863.16
  5. Step 5: Solve for x
    x = 19,035,085,863.16/216,410.40
  6. Step 6: Final answer
    x = 87,958.28

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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.