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Finding the Fourth Proportional to 456,331.89, 629,712.50 and 249,559.45

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Solution

The fourth proportional to 456,331.89, 629,712.50 and 249,559.45 is: 344,378.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,331.89 : 629,712.50 = 249,559.45 : x
  2. Step 2: Convert to fraction form
    456,331.89/629,712.50 = 249,559.45/x
  3. Step 3: Cross multiply
    456,331.89x = 629,712.50 × 249,559.45
  4. Step 4: Simplify right side
    456,331.89x = 157,150,704,441.70
  5. Step 5: Solve for x
    x = 157,150,704,441.70/456,331.89
  6. Step 6: Final answer
    x = 344,378.09

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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.