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Finding the Fourth Proportional to 481,333.71, 721,990.83 and 165,783.63

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Solution

The fourth proportional to 481,333.71, 721,990.83 and 165,783.63 is: 248,672.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,333.71 : 721,990.83 = 165,783.63 : x
  2. Step 2: Convert to fraction form
    481,333.71/721,990.83 = 165,783.63/x
  3. Step 3: Cross multiply
    481,333.71x = 721,990.83 × 165,783.63
  4. Step 4: Simplify right side
    481,333.71x = 119,694,260,624.11
  5. Step 5: Solve for x
    x = 119,694,260,624.11/481,333.71
  6. Step 6: Final answer
    x = 248,672.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.