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Finding the Fourth Proportional to 329,901.89, 455,263.00 and 178,998.89

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Solution

The fourth proportional to 329,901.89, 455,263.00 and 178,998.89 is: 247,017.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,901.89 : 455,263.00 = 178,998.89 : x
  2. Step 2: Convert to fraction form
    329,901.89/455,263.00 = 178,998.89/x
  3. Step 3: Cross multiply
    329,901.89x = 455,263.00 × 178,998.89
  4. Step 4: Simplify right side
    329,901.89x = 81,491,568,934.26
  5. Step 5: Solve for x
    x = 81,491,568,934.26/329,901.89
  6. Step 6: Final answer
    x = 247,017.59

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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.