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Finding the Fourth Proportional to 626,801.45, 863,436.58 and 534,620.43

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Solution

The fourth proportional to 626,801.45, 863,436.58 and 534,620.43 is: 736,454.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,801.45 : 863,436.58 = 534,620.43 : x
  2. Step 2: Convert to fraction form
    626,801.45/863,436.58 = 534,620.43/x
  3. Step 3: Cross multiply
    626,801.45x = 863,436.58 × 534,620.43
  4. Step 4: Simplify right side
    626,801.45x = 461,610,835,677.33
  5. Step 5: Solve for x
    x = 461,610,835,677.33/626,801.45
  6. Step 6: Final answer
    x = 736,454.64

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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.