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Finding the Fourth Proportional to 504,855.50, 696,652.18 and 278,486.42

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Solution

The fourth proportional to 504,855.50, 696,652.18 and 278,486.42 is: 384,284.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,855.50 : 696,652.18 = 278,486.42 : x
  2. Step 2: Convert to fraction form
    504,855.50/696,652.18 = 278,486.42/x
  3. Step 3: Cross multiply
    504,855.50x = 696,652.18 × 278,486.42
  4. Step 4: Simplify right side
    504,855.50x = 194,008,167,413.92
  5. Step 5: Solve for x
    x = 194,008,167,413.92/504,855.50
  6. Step 6: Final answer
    x = 384,284.55

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.