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Finding the Fourth Proportional to 351,374.80, 525,833.40 and 321,883.60

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Solution

The fourth proportional to 351,374.80, 525,833.40 and 321,883.60 is: 481,699.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,374.80 : 525,833.40 = 321,883.60 : x
  2. Step 2: Convert to fraction form
    351,374.80/525,833.40 = 321,883.60/x
  3. Step 3: Cross multiply
    351,374.80x = 525,833.40 × 321,883.60
  4. Step 4: Simplify right side
    351,374.80x = 169,257,147,792.24
  5. Step 5: Solve for x
    x = 169,257,147,792.24/351,374.80
  6. Step 6: Final answer
    x = 481,699.73

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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.