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Finding the Fourth Proportional to 450,753.87, 675,134.19 and 308,261.46

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Solution

The fourth proportional to 450,753.87, 675,134.19 and 308,261.46 is: 461,710.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,753.87 : 675,134.19 = 308,261.46 : x
  2. Step 2: Convert to fraction form
    450,753.87/675,134.19 = 308,261.46/x
  3. Step 3: Cross multiply
    450,753.87x = 675,134.19 × 308,261.46
  4. Step 4: Simplify right side
    450,753.87x = 208,117,851,105.32
  5. Step 5: Solve for x
    x = 208,117,851,105.32/450,753.87
  6. Step 6: Final answer
    x = 461,710.63

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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.