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Finding the Fourth Proportional to 492,221.20, 738,113.10 and 192,602.20

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Solution

The fourth proportional to 492,221.20, 738,113.10 and 192,602.20 is: 288,817.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,221.20 : 738,113.10 = 192,602.20 : x
  2. Step 2: Convert to fraction form
    492,221.20/738,113.10 = 192,602.20/x
  3. Step 3: Cross multiply
    492,221.20x = 738,113.10 × 192,602.20
  4. Step 4: Simplify right side
    492,221.20x = 142,162,206,908.82
  5. Step 5: Solve for x
    x = 142,162,206,908.82/492,221.20
  6. Step 6: Final answer
    x = 288,817.72

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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.