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Finding the Fourth Proportional to 542,163.90, 812,261.70 and 441,780.60

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Solution

The fourth proportional to 542,163.90, 812,261.70 and 441,780.60 is: 661,868.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,163.90 : 812,261.70 = 441,780.60 : x
  2. Step 2: Convert to fraction form
    542,163.90/812,261.70 = 441,780.60/x
  3. Step 3: Cross multiply
    542,163.90x = 812,261.70 × 441,780.60
  4. Step 4: Simplify right side
    542,163.90x = 358,841,461,183.02
  5. Step 5: Solve for x
    x = 358,841,461,183.02/542,163.90
  6. Step 6: Final answer
    x = 661,868.97

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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.