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Finding the Fourth Proportional to 481,893.71, 722,931.78 and 193,727.65

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Solution

The fourth proportional to 481,893.71, 722,931.78 and 193,727.65 is: 290,628.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,893.71 : 722,931.78 = 193,727.65 : x
  2. Step 2: Convert to fraction form
    481,893.71/722,931.78 = 193,727.65/x
  3. Step 3: Cross multiply
    481,893.71x = 722,931.78 × 193,727.65
  4. Step 4: Simplify right side
    481,893.71x = 140,051,875,124.36
  5. Step 5: Solve for x
    x = 140,051,875,124.36/481,893.71
  6. Step 6: Final answer
    x = 290,628.15

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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.