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Finding the Fourth Proportional to 329,918.63, 455,287.71 and 179,015.63

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Solution

The fourth proportional to 329,918.63, 455,287.71 and 179,015.63 is: 247,041.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,918.63 : 455,287.71 = 179,015.63 : x
  2. Step 2: Convert to fraction form
    329,918.63/455,287.71 = 179,015.63/x
  3. Step 3: Cross multiply
    329,918.63x = 455,287.71 × 179,015.63
  4. Step 4: Simplify right side
    329,918.63x = 81,503,616,236.91
  5. Step 5: Solve for x
    x = 81,503,616,236.91/329,918.63
  6. Step 6: Final answer
    x = 247,041.57

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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.