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Finding the Fourth Proportional to 458,450.44, 687,672.56 and 249,416.96

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Solution

The fourth proportional to 458,450.44, 687,672.56 and 249,416.96 is: 374,123.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,450.44 : 687,672.56 = 249,416.96 : x
  2. Step 2: Convert to fraction form
    458,450.44/687,672.56 = 249,416.96/x
  3. Step 3: Cross multiply
    458,450.44x = 687,672.56 × 249,416.96
  4. Step 4: Simplify right side
    458,450.44x = 171,517,199,390.62
  5. Step 5: Solve for x
    x = 171,517,199,390.62/458,450.44
  6. Step 6: Final answer
    x = 374,123.75

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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.