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Finding the Fourth Proportional to 573,112.74, 790,996.41 and 331,356.90

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Solution

The fourth proportional to 573,112.74, 790,996.41 and 331,356.90 is: 457,330.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,112.74 : 790,996.41 = 331,356.90 : x
  2. Step 2: Convert to fraction form
    573,112.74/790,996.41 = 331,356.90/x
  3. Step 3: Cross multiply
    573,112.74x = 790,996.41 × 331,356.90
  4. Step 4: Simplify right side
    573,112.74x = 262,102,118,328.73
  5. Step 5: Solve for x
    x = 262,102,118,328.73/573,112.74
  6. Step 6: Final answer
    x = 457,330.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.