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Finding the Fourth Proportional to 264,888.20, 397,793.10 and 140,472.20

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Solution

The fourth proportional to 264,888.20, 397,793.10 and 140,472.20 is: 210,952.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,888.20 : 397,793.10 = 140,472.20 : x
  2. Step 2: Convert to fraction form
    264,888.20/397,793.10 = 140,472.20/x
  3. Step 3: Cross multiply
    264,888.20x = 397,793.10 × 140,472.20
  4. Step 4: Simplify right side
    264,888.20x = 55,878,871,901.82
  5. Step 5: Solve for x
    x = 55,878,871,901.82/264,888.20
  6. Step 6: Final answer
    x = 210,952.67

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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.