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Finding the Fourth Proportional to 453,518.52, 679,240.96 and 217,027.32

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Solution

The fourth proportional to 453,518.52, 679,240.96 and 217,027.32 is: 325,044.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,518.52 : 679,240.96 = 217,027.32 : x
  2. Step 2: Convert to fraction form
    453,518.52/679,240.96 = 217,027.32/x
  3. Step 3: Cross multiply
    453,518.52x = 679,240.96 × 217,027.32
  4. Step 4: Simplify right side
    453,518.52x = 147,413,845,183.03
  5. Step 5: Solve for x
    x = 147,413,845,183.03/453,518.52
  6. Step 6: Final answer
    x = 325,044.82

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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.