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Finding the Fourth Proportional to 449,841.67, 620,794.70 and 245,903.83

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Solution

The fourth proportional to 449,841.67, 620,794.70 and 245,903.83 is: 339,354.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,841.67 : 620,794.70 = 245,903.83 : x
  2. Step 2: Convert to fraction form
    449,841.67/620,794.70 = 245,903.83/x
  3. Step 3: Cross multiply
    449,841.67x = 620,794.70 × 245,903.83
  4. Step 4: Simplify right side
    449,841.67x = 152,655,794,373.70
  5. Step 5: Solve for x
    x = 152,655,794,373.70/449,841.67
  6. Step 6: Final answer
    x = 339,354.50

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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.