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Finding the Fourth Proportional to 423,027.56, 633,695.16 and 254,454.86

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Solution

The fourth proportional to 423,027.56, 633,695.16 and 254,454.86 is: 381,173.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,027.56 : 633,695.16 = 254,454.86 : x
  2. Step 2: Convert to fraction form
    423,027.56/633,695.16 = 254,454.86/x
  3. Step 3: Cross multiply
    423,027.56x = 633,695.16 × 254,454.86
  4. Step 4: Simplify right side
    423,027.56x = 161,246,813,220.48
  5. Step 5: Solve for x
    x = 161,246,813,220.48/423,027.56
  6. Step 6: Final answer
    x = 381,173.31

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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.