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Finding the Fourth Proportional to 357,611.67, 493,380.01 and 228,625.65

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Solution

The fourth proportional to 357,611.67, 493,380.01 and 228,625.65 is: 315,424.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,611.67 : 493,380.01 = 228,625.65 : x
  2. Step 2: Convert to fraction form
    357,611.67/493,380.01 = 228,625.65/x
  3. Step 3: Cross multiply
    357,611.67x = 493,380.01 × 228,625.65
  4. Step 4: Simplify right side
    357,611.67x = 112,799,323,016.36
  5. Step 5: Solve for x
    x = 112,799,323,016.36/357,611.67
  6. Step 6: Final answer
    x = 315,424.05

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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.