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Finding the Fourth Proportional to 465,087.60, 697,631.40 and 331,243.20

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Solution

The fourth proportional to 465,087.60, 697,631.40 and 331,243.20 is: 496,864.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,087.60 : 697,631.40 = 331,243.20 : x
  2. Step 2: Convert to fraction form
    465,087.60/697,631.40 = 331,243.20/x
  3. Step 3: Cross multiply
    465,087.60x = 697,631.40 × 331,243.20
  4. Step 4: Simplify right side
    465,087.60x = 231,085,657,356.48
  5. Step 5: Solve for x
    x = 231,085,657,356.48/465,087.60
  6. Step 6: Final answer
    x = 496,864.80

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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.