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Finding the Fourth Proportional to 307,008.80, 423,671.52 and 179,708.48

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Solution

The fourth proportional to 307,008.80, 423,671.52 and 179,708.48 is: 247,997.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,008.80 : 423,671.52 = 179,708.48 : x
  2. Step 2: Convert to fraction form
    307,008.80/423,671.52 = 179,708.48/x
  3. Step 3: Cross multiply
    307,008.80x = 423,671.52 × 179,708.48
  4. Step 4: Simplify right side
    307,008.80x = 76,137,364,878.49
  5. Step 5: Solve for x
    x = 76,137,364,878.49/307,008.80
  6. Step 6: Final answer
    x = 247,997.34

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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.