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Finding the Fourth Proportional to 551,367.20, 827,050.80 and 528,039.20

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Solution

The fourth proportional to 551,367.20, 827,050.80 and 528,039.20 is: 792,058.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,367.20 : 827,050.80 = 528,039.20 : x
  2. Step 2: Convert to fraction form
    551,367.20/827,050.80 = 528,039.20/x
  3. Step 3: Cross multiply
    551,367.20x = 827,050.80 × 528,039.20
  4. Step 4: Simplify right side
    551,367.20x = 436,715,242,791.36
  5. Step 5: Solve for x
    x = 436,715,242,791.36/551,367.20
  6. Step 6: Final answer
    x = 792,058.80

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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.