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Finding the Fourth Proportional to 635,903.34, 953,884.17 and 449,745.90

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Solution

The fourth proportional to 635,903.34, 953,884.17 and 449,745.90 is: 674,639.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,903.34 : 953,884.17 = 449,745.90 : x
  2. Step 2: Convert to fraction form
    635,903.34/953,884.17 = 449,745.90/x
  3. Step 3: Cross multiply
    635,903.34x = 953,884.17 × 449,745.90
  4. Step 4: Simplify right side
    635,903.34x = 429,005,494,532.40
  5. Step 5: Solve for x
    x = 429,005,494,532.40/635,903.34
  6. Step 6: Final answer
    x = 674,639.47

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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.