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Finding the Fourth Proportional to 329,901.16, 455,261.70 and 178,994.92

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Solution

The fourth proportional to 329,901.16, 455,261.70 and 178,994.92 is: 247,011.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,901.16 : 455,261.70 = 178,994.92 : x
  2. Step 2: Convert to fraction form
    329,901.16/455,261.70 = 178,994.92/x
  3. Step 3: Cross multiply
    329,901.16x = 455,261.70 × 178,994.92
  4. Step 4: Simplify right side
    329,901.16x = 81,489,531,570.56
  5. Step 5: Solve for x
    x = 81,489,531,570.56/329,901.16
  6. Step 6: Final answer
    x = 247,011.96

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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.