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Finding the Fourth Proportional to 576,187.60, 863,244.60 and 493,243.60

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Solution

The fourth proportional to 576,187.60, 863,244.60 and 493,243.60 is: 738,977.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,187.60 : 863,244.60 = 493,243.60 : x
  2. Step 2: Convert to fraction form
    576,187.60/863,244.60 = 493,243.60/x
  3. Step 3: Cross multiply
    576,187.60x = 863,244.60 × 493,243.60
  4. Step 4: Simplify right side
    576,187.60x = 425,789,874,184.56
  5. Step 5: Solve for x
    x = 425,789,874,184.56/576,187.60
  6. Step 6: Final answer
    x = 738,977.85

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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.