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Finding the Fourth Proportional to 551,029.60, 826,544.40 and 489,028.16

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Solution

The fourth proportional to 551,029.60, 826,544.40 and 489,028.16 is: 733,542.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,029.60 : 826,544.40 = 489,028.16 : x
  2. Step 2: Convert to fraction form
    551,029.60/826,544.40 = 489,028.16/x
  3. Step 3: Cross multiply
    551,029.60x = 826,544.40 × 489,028.16
  4. Step 4: Simplify right side
    551,029.60x = 404,203,487,090.30
  5. Step 5: Solve for x
    x = 404,203,487,090.30/551,029.60
  6. Step 6: Final answer
    x = 733,542.24

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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.