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Finding the Fourth Proportional to 501,446.28, 751,775.60 and 343,194.96

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Solution

The fourth proportional to 501,446.28, 751,775.60 and 343,194.96 is: 514,522.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,446.28 : 751,775.60 = 343,194.96 : x
  2. Step 2: Convert to fraction form
    501,446.28/751,775.60 = 343,194.96/x
  3. Step 3: Cross multiply
    501,446.28x = 751,775.60 × 343,194.96
  4. Step 4: Simplify right side
    501,446.28x = 258,005,596,970.98
  5. Step 5: Solve for x
    x = 258,005,596,970.98/501,446.28
  6. Step 6: Final answer
    x = 514,522.91

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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.