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Finding the Fourth Proportional to 298,638.59, 446,905.37 and 186,371.57

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Solution

The fourth proportional to 298,638.59, 446,905.37 and 186,371.57 is: 278,900.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,638.59 : 446,905.37 = 186,371.57 : x
  2. Step 2: Convert to fraction form
    298,638.59/446,905.37 = 186,371.57/x
  3. Step 3: Cross multiply
    298,638.59x = 446,905.37 × 186,371.57
  4. Step 4: Simplify right side
    298,638.59x = 83,290,452,281.95
  5. Step 5: Solve for x
    x = 83,290,452,281.95/298,638.59
  6. Step 6: Final answer
    x = 278,900.51

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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.