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Finding the Fourth Proportional to 262,392.20, 393,005.10 and 262,392.20

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Solution

The fourth proportional to 262,392.20, 393,005.10 and 262,392.20 is: 393,005.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,392.20 : 393,005.10 = 262,392.20 : x
  2. Step 2: Convert to fraction form
    262,392.20/393,005.10 = 262,392.20/x
  3. Step 3: Cross multiply
    262,392.20x = 393,005.10 × 262,392.20
  4. Step 4: Simplify right side
    262,392.20x = 103,121,472,800.22
  5. Step 5: Solve for x
    x = 103,121,472,800.22/262,392.20
  6. Step 6: Final answer
    x = 393,005.10

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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.