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Finding the Fourth Proportional to 551,412.10, 827,118.15 and 374,464.90

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Solution

The fourth proportional to 551,412.10, 827,118.15 and 374,464.90 is: 561,697.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,412.10 : 827,118.15 = 374,464.90 : x
  2. Step 2: Convert to fraction form
    551,412.10/827,118.15 = 374,464.90/x
  3. Step 3: Cross multiply
    551,412.10x = 827,118.15 × 374,464.90
  4. Step 4: Simplify right side
    551,412.10x = 309,726,715,327.94
  5. Step 5: Solve for x
    x = 309,726,715,327.94/551,412.10
  6. Step 6: Final answer
    x = 561,697.35

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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.