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Finding the Fourth Proportional to 929,842.80, 1,394,893.80 and 397,359.60

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Solution

The fourth proportional to 929,842.80, 1,394,893.80 and 397,359.60 is: 596,094.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,842.80 : 1,394,893.80 = 397,359.60 : x
  2. Step 2: Convert to fraction form
    929,842.80/1,394,893.80 = 397,359.60/x
  3. Step 3: Cross multiply
    929,842.80x = 1,394,893.80 × 397,359.60
  4. Step 4: Simplify right side
    929,842.80x = 554,274,442,410.48
  5. Step 5: Solve for x
    x = 554,274,442,410.48/929,842.80
  6. Step 6: Final answer
    x = 596,094.78

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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.