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Finding the Fourth Proportional to 499,816.19, 749,392.11 and 275,282.36

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Solution

The fourth proportional to 499,816.19, 749,392.11 and 275,282.36 is: 412,740.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,816.19 : 749,392.11 = 275,282.36 : x
  2. Step 2: Convert to fraction form
    499,816.19/749,392.11 = 275,282.36/x
  3. Step 3: Cross multiply
    499,816.19x = 749,392.11 × 275,282.36
  4. Step 4: Simplify right side
    499,816.19x = 206,294,430,479.66
  5. Step 5: Solve for x
    x = 206,294,430,479.66/499,816.19
  6. Step 6: Final answer
    x = 412,740.60

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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.