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Finding the Fourth Proportional to 231,620.55, 316,717.67 and 231,620.55

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Solution

The fourth proportional to 231,620.55, 316,717.67 and 231,620.55 is: 316,717.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,620.55 : 316,717.67 = 231,620.55 : x
  2. Step 2: Convert to fraction form
    231,620.55/316,717.67 = 231,620.55/x
  3. Step 3: Cross multiply
    231,620.55x = 316,717.67 × 231,620.55
  4. Step 4: Simplify right side
    231,620.55x = 73,358,320,920.12
  5. Step 5: Solve for x
    x = 73,358,320,920.12/231,620.55
  6. Step 6: Final answer
    x = 316,717.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.