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Finding the Fourth Proportional to 330,432.70, 455,991.51 and 179,528.62

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Solution

The fourth proportional to 330,432.70, 455,991.51 and 179,528.62 is: 247,746.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,432.70 : 455,991.51 = 179,528.62 : x
  2. Step 2: Convert to fraction form
    330,432.70/455,991.51 = 179,528.62/x
  3. Step 3: Cross multiply
    330,432.70x = 455,991.51 × 179,528.62
  4. Step 4: Simplify right side
    330,432.70x = 81,863,526,522.02
  5. Step 5: Solve for x
    x = 81,863,526,522.02/330,432.70
  6. Step 6: Final answer
    x = 247,746.44

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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.