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Finding the Fourth Proportional to 296,859.20, 445,288.80 and 262,644.80

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Solution

The fourth proportional to 296,859.20, 445,288.80 and 262,644.80 is: 393,967.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,859.20 : 445,288.80 = 262,644.80 : x
  2. Step 2: Convert to fraction form
    296,859.20/445,288.80 = 262,644.80/x
  3. Step 3: Cross multiply
    296,859.20x = 445,288.80 × 262,644.80
  4. Step 4: Simplify right side
    296,859.20x = 116,952,787,818.24
  5. Step 5: Solve for x
    x = 116,952,787,818.24/296,859.20
  6. Step 6: Final answer
    x = 393,967.20

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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.