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Finding the Fourth Proportional to 296,738.20, 445,020.90 and 163,682.20

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Solution

The fourth proportional to 296,738.20, 445,020.90 and 163,682.20 is: 245,475.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,738.20 : 445,020.90 = 163,682.20 : x
  2. Step 2: Convert to fraction form
    296,738.20/445,020.90 = 163,682.20/x
  3. Step 3: Cross multiply
    296,738.20x = 445,020.90 × 163,682.20
  4. Step 4: Simplify right side
    296,738.20x = 72,841,999,957.98
  5. Step 5: Solve for x
    x = 72,841,999,957.98/296,738.20
  6. Step 6: Final answer
    x = 245,475.64

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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.