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Finding the Fourth Proportional to 329,969.28, 455,358.84 and 179,066.28

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Solution

The fourth proportional to 329,969.28, 455,358.84 and 179,066.28 is: 247,112.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,969.28 : 455,358.84 = 179,066.28 : x
  2. Step 2: Convert to fraction form
    329,969.28/455,358.84 = 179,066.28/x
  3. Step 3: Cross multiply
    329,969.28x = 455,358.84 × 179,066.28
  4. Step 4: Simplify right side
    329,969.28x = 81,539,413,543.92
  5. Step 5: Solve for x
    x = 81,539,413,543.92/329,969.28
  6. Step 6: Final answer
    x = 247,112.14

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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.