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Finding the Fourth Proportional to 423,032.03, 634,232.45 and 254,512.86

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Solution

The fourth proportional to 423,032.03, 634,232.45 and 254,512.86 is: 381,579.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,032.03 : 634,232.45 = 254,512.86 : x
  2. Step 2: Convert to fraction form
    423,032.03/634,232.45 = 254,512.86/x
  3. Step 3: Cross multiply
    423,032.03x = 634,232.45 × 254,512.86
  4. Step 4: Simplify right side
    423,032.03x = 161,420,313,481.74
  5. Step 5: Solve for x
    x = 161,420,313,481.74/423,032.03
  6. Step 6: Final answer
    x = 381,579.42

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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.