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Finding the Fourth Proportional to 626,449.04, 939,367.20 and 437,000

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Solution

The fourth proportional to 626,449.04, 939,367.20 and 437,000 is: 655,286.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,449.04 : 939,367.20 = 437,000 : x
  2. Step 2: Convert to fraction form
    626,449.04/939,367.20 = 437,000/x
  3. Step 3: Cross multiply
    626,449.04x = 939,367.20 × 437,000
  4. Step 4: Simplify right side
    626,449.04x = 410,503,466,400
  5. Step 5: Solve for x
    x = 410,503,466,400/626,449.04
  6. Step 6: Final answer
    x = 655,286.29

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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.