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Finding the Fourth Proportional to 262,378.16, 393,059.90 and 219,752.16

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Solution

The fourth proportional to 262,378.16, 393,059.90 and 219,752.16 is: 329,203.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,378.16 : 393,059.90 = 219,752.16 : x
  2. Step 2: Convert to fraction form
    262,378.16/393,059.90 = 219,752.16/x
  3. Step 3: Cross multiply
    262,378.16x = 393,059.90 × 219,752.16
  4. Step 4: Simplify right side
    262,378.16x = 86,375,762,034.38
  5. Step 5: Solve for x
    x = 86,375,762,034.38/262,378.16
  6. Step 6: Final answer
    x = 329,203.32

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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.