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Finding the Fourth Proportional to 1,294,490.86, 1,941,734.61 and 347,861.58

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Solution

The fourth proportional to 1,294,490.86, 1,941,734.61 and 347,861.58 is: 521,791.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,490.86 : 1,941,734.61 = 347,861.58 : x
  2. Step 2: Convert to fraction form
    1,294,490.86/1,941,734.61 = 347,861.58/x
  3. Step 3: Cross multiply
    1,294,490.86x = 1,941,734.61 × 347,861.58
  4. Step 4: Simplify right side
    1,294,490.86x = 675,454,869,375.28
  5. Step 5: Solve for x
    x = 675,454,869,375.28/1,294,490.86
  6. Step 6: Final answer
    x = 521,791.92

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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.