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Finding the Fourth Proportional to 619,479.96, 853,977.46 and 437,871.48

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Solution

The fourth proportional to 619,479.96, 853,977.46 and 437,871.48 is: 603,623.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,479.96 : 853,977.46 = 437,871.48 : x
  2. Step 2: Convert to fraction form
    619,479.96/853,977.46 = 437,871.48/x
  3. Step 3: Cross multiply
    619,479.96x = 853,977.46 × 437,871.48
  4. Step 4: Simplify right side
    619,479.96x = 373,932,374,296.84
  5. Step 5: Solve for x
    x = 373,932,374,296.84/619,479.96
  6. Step 6: Final answer
    x = 603,623.04

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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.