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Finding the Fourth Proportional to 400,890.51, 601,446.48 and 356,825.19

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Solution

The fourth proportional to 400,890.51, 601,446.48 and 356,825.19 is: 535,336.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,890.51 : 601,446.48 = 356,825.19 : x
  2. Step 2: Convert to fraction form
    400,890.51/601,446.48 = 356,825.19/x
  3. Step 3: Cross multiply
    400,890.51x = 601,446.48 × 356,825.19
  4. Step 4: Simplify right side
    400,890.51x = 214,611,257,425.30
  5. Step 5: Solve for x
    x = 214,611,257,425.30/400,890.51
  6. Step 6: Final answer
    x = 535,336.34

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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.