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Finding the Fourth Proportional to 613,760.43, 846,962.96 and 443,699.31

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Solution

The fourth proportional to 613,760.43, 846,962.96 and 443,699.31 is: 612,285.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,760.43 : 846,962.96 = 443,699.31 : x
  2. Step 2: Convert to fraction form
    613,760.43/846,962.96 = 443,699.31/x
  3. Step 3: Cross multiply
    613,760.43x = 846,962.96 × 443,699.31
  4. Step 4: Simplify right side
    613,760.43x = 375,796,878,729.06
  5. Step 5: Solve for x
    x = 375,796,878,729.06/613,760.43
  6. Step 6: Final answer
    x = 612,285.93

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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.