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Finding the Fourth Proportional to 262,030.20, 393,045.30 and 192,046.20

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Solution

The fourth proportional to 262,030.20, 393,045.30 and 192,046.20 is: 288,069.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,030.20 : 393,045.30 = 192,046.20 : x
  2. Step 2: Convert to fraction form
    262,030.20/393,045.30 = 192,046.20/x
  3. Step 3: Cross multiply
    262,030.20x = 393,045.30 × 192,046.20
  4. Step 4: Simplify right side
    262,030.20x = 75,482,856,292.86
  5. Step 5: Solve for x
    x = 75,482,856,292.86/262,030.20
  6. Step 6: Final answer
    x = 288,069.30

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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.