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Finding the Fourth Proportional to 449,083.48, 619,719.72 and 267,701.80

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Solution

The fourth proportional to 449,083.48, 619,719.72 and 267,701.80 is: 369,419.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,083.48 : 619,719.72 = 267,701.80 : x
  2. Step 2: Convert to fraction form
    449,083.48/619,719.72 = 267,701.80/x
  3. Step 3: Cross multiply
    449,083.48x = 619,719.72 × 267,701.80
  4. Step 4: Simplify right side
    449,083.48x = 165,900,084,539.50
  5. Step 5: Solve for x
    x = 165,900,084,539.50/449,083.48
  6. Step 6: Final answer
    x = 369,419.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.