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Finding the Fourth Proportional to 419,568.24, 629,901.20 and 249,101.20

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Solution

The fourth proportional to 419,568.24, 629,901.20 and 249,101.20 is: 373,977.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,568.24 : 629,901.20 = 249,101.20 : x
  2. Step 2: Convert to fraction form
    419,568.24/629,901.20 = 249,101.20/x
  3. Step 3: Cross multiply
    419,568.24x = 629,901.20 × 249,101.20
  4. Step 4: Simplify right side
    419,568.24x = 156,909,144,801.44
  5. Step 5: Solve for x
    x = 156,909,144,801.44/419,568.24
  6. Step 6: Final answer
    x = 373,977.65

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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.