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Finding the Fourth Proportional to 499,916.48, 689,884.80 and 273,562

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Solution

The fourth proportional to 499,916.48, 689,884.80 and 273,562 is: 377,515.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,916.48 : 689,884.80 = 273,562 : x
  2. Step 2: Convert to fraction form
    499,916.48/689,884.80 = 273,562/x
  3. Step 3: Cross multiply
    499,916.48x = 689,884.80 × 273,562
  4. Step 4: Simplify right side
    499,916.48x = 188,726,265,657.60
  5. Step 5: Solve for x
    x = 188,726,265,657.60/499,916.48
  6. Step 6: Final answer
    x = 377,515.59

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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.