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Finding the Fourth Proportional to 296,761.26, 445,586.58 and 256,903.17

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Solution

The fourth proportional to 296,761.26, 445,586.58 and 256,903.17 is: 385,739.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,761.26 : 445,586.58 = 256,903.17 : x
  2. Step 2: Convert to fraction form
    296,761.26/445,586.58 = 256,903.17/x
  3. Step 3: Cross multiply
    296,761.26x = 445,586.58 × 256,903.17
  4. Step 4: Simplify right side
    296,761.26x = 114,472,604,911.46
  5. Step 5: Solve for x
    x = 114,472,604,911.46/296,761.26
  6. Step 6: Final answer
    x = 385,739.72

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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.