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Finding the Fourth Proportional to 548,902.80, 822,187.80 and 455,590.80

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Solution

The fourth proportional to 548,902.80, 822,187.80 and 455,590.80 is: 682,418.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,902.80 : 822,187.80 = 455,590.80 : x
  2. Step 2: Convert to fraction form
    548,902.80/822,187.80 = 455,590.80/x
  3. Step 3: Cross multiply
    548,902.80x = 822,187.80 × 455,590.80
  4. Step 4: Simplify right side
    548,902.80x = 374,581,197,552.24
  5. Step 5: Solve for x
    x = 374,581,197,552.24/548,902.80
  6. Step 6: Final answer
    x = 682,418.08

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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.