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Finding the Fourth Proportional to 329,997.76, 455,396.79 and 179,094.76

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Solution

The fourth proportional to 329,997.76, 455,396.79 and 179,094.76 is: 247,150.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,997.76 : 455,396.79 = 179,094.76 : x
  2. Step 2: Convert to fraction form
    329,997.76/455,396.79 = 179,094.76/x
  3. Step 3: Cross multiply
    329,997.76x = 455,396.79 × 179,094.76
  4. Step 4: Simplify right side
    329,997.76x = 81,559,178,809.82
  5. Step 5: Solve for x
    x = 81,559,178,809.82/329,997.76
  6. Step 6: Final answer
    x = 247,150.70

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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.