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Finding the Fourth Proportional to 456,046.20, 684,487.80 and 231,562.80

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Solution

The fourth proportional to 456,046.20, 684,487.80 and 231,562.80 is: 347,556.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,046.20 : 684,487.80 = 231,562.80 : x
  2. Step 2: Convert to fraction form
    456,046.20/684,487.80 = 231,562.80/x
  3. Step 3: Cross multiply
    456,046.20x = 684,487.80 × 231,562.80
  4. Step 4: Simplify right side
    456,046.20x = 158,501,911,533.84
  5. Step 5: Solve for x
    x = 158,501,911,533.84/456,046.20
  6. Step 6: Final answer
    x = 347,556.70

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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.