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Finding the Fourth Proportional to 492,048.30, 738,134.98 and 192,490.46

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Solution

The fourth proportional to 492,048.30, 738,134.98 and 192,490.46 is: 288,760.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,048.30 : 738,134.98 = 192,490.46 : x
  2. Step 2: Convert to fraction form
    492,048.30/738,134.98 = 192,490.46/x
  3. Step 3: Cross multiply
    492,048.30x = 738,134.98 × 192,490.46
  4. Step 4: Simplify right side
    492,048.30x = 142,083,940,438.40
  5. Step 5: Solve for x
    x = 142,083,940,438.40/492,048.30
  6. Step 6: Final answer
    x = 288,760.15

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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.