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Finding the Fourth Proportional to 535,878.48, 739,471.56 and 294,122.64

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Solution

The fourth proportional to 535,878.48, 739,471.56 and 294,122.64 is: 405,866.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,878.48 : 739,471.56 = 294,122.64 : x
  2. Step 2: Convert to fraction form
    535,878.48/739,471.56 = 294,122.64/x
  3. Step 3: Cross multiply
    535,878.48x = 739,471.56 × 294,122.64
  4. Step 4: Simplify right side
    535,878.48x = 217,495,327,432.12
  5. Step 5: Solve for x
    x = 217,495,327,432.12/535,878.48
  6. Step 6: Final answer
    x = 405,866.88

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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.