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Finding the Fourth Proportional to 571,534.22, 856,764.90 and 192,189.67

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Solution

The fourth proportional to 571,534.22, 856,764.90 and 192,189.67 is: 288,104.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,534.22 : 856,764.90 = 192,189.67 : x
  2. Step 2: Convert to fraction form
    571,534.22/856,764.90 = 192,189.67/x
  3. Step 3: Cross multiply
    571,534.22x = 856,764.90 × 192,189.67
  4. Step 4: Simplify right side
    571,534.22x = 164,661,361,256.67
  5. Step 5: Solve for x
    x = 164,661,361,256.67/571,534.22
  6. Step 6: Final answer
    x = 288,104.11

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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.