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Finding the Fourth Proportional to 535,761.79, 739,396.65 and 294,085.30

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Solution

The fourth proportional to 535,761.79, 739,396.65 and 294,085.30 is: 405,862.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,761.79 : 739,396.65 = 294,085.30 : x
  2. Step 2: Convert to fraction form
    535,761.79/739,396.65 = 294,085.30/x
  3. Step 3: Cross multiply
    535,761.79x = 739,396.65 × 294,085.30
  4. Step 4: Simplify right side
    535,761.79x = 217,445,685,634.25
  5. Step 5: Solve for x
    x = 217,445,685,634.25/535,761.79
  6. Step 6: Final answer
    x = 405,862.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.