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Finding the Fourth Proportional to 330,394.88, 455,945.34 and 179,491.88

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Solution

The fourth proportional to 330,394.88, 455,945.34 and 179,491.88 is: 247,699.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,394.88 : 455,945.34 = 179,491.88 : x
  2. Step 2: Convert to fraction form
    330,394.88/455,945.34 = 179,491.88/x
  3. Step 3: Cross multiply
    330,394.88x = 455,945.34 × 179,491.88
  4. Step 4: Simplify right side
    330,394.88x = 81,838,483,076.65
  5. Step 5: Solve for x
    x = 81,838,483,076.65/330,394.88
  6. Step 6: Final answer
    x = 247,699.01

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1.5x scale

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.