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Finding the Fourth Proportional to 577,918.40, 866,861.40 and 262,374.80

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Solution

The fourth proportional to 577,918.40, 866,861.40 and 262,374.80 is: 393,554.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,918.40 : 866,861.40 = 262,374.80 : x
  2. Step 2: Convert to fraction form
    577,918.40/866,861.40 = 262,374.80/x
  3. Step 3: Cross multiply
    577,918.40x = 866,861.40 × 262,374.80
  4. Step 4: Simplify right side
    577,918.40x = 227,442,586,452.72
  5. Step 5: Solve for x
    x = 227,442,586,452.72/577,918.40
  6. Step 6: Final answer
    x = 393,554.85

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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.