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Finding the Fourth Proportional to 583,732.80, 874,918.80 and 268,221.60

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Solution

The fourth proportional to 583,732.80, 874,918.80 and 268,221.60 is: 402,019.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,732.80 : 874,918.80 = 268,221.60 : x
  2. Step 2: Convert to fraction form
    583,732.80/874,918.80 = 268,221.60/x
  3. Step 3: Cross multiply
    583,732.80x = 874,918.80 × 268,221.60
  4. Step 4: Simplify right side
    583,732.80x = 234,672,120,406.08
  5. Step 5: Solve for x
    x = 234,672,120,406.08/583,732.80
  6. Step 6: Final answer
    x = 402,019.76

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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.