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Finding the Fourth Proportional to 450,274.92, 621,384.29 and 246,321.46

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Solution

The fourth proportional to 450,274.92, 621,384.29 and 246,321.46 is: 339,926.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,274.92 : 621,384.29 = 246,321.46 : x
  2. Step 2: Convert to fraction form
    450,274.92/621,384.29 = 246,321.46/x
  3. Step 3: Cross multiply
    450,274.92x = 621,384.29 × 246,321.46
  4. Step 4: Simplify right side
    450,274.92x = 153,060,287,388.25
  5. Step 5: Solve for x
    x = 153,060,287,388.25/450,274.92
  6. Step 6: Final answer
    x = 339,926.30

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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.