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Finding the Fourth Proportional to 573,611.10, 860,416.65 and 307,890.60

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Solution

The fourth proportional to 573,611.10, 860,416.65 and 307,890.60 is: 461,835.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,611.10 : 860,416.65 = 307,890.60 : x
  2. Step 2: Convert to fraction form
    573,611.10/860,416.65 = 307,890.60/x
  3. Step 3: Cross multiply
    573,611.10x = 860,416.65 × 307,890.60
  4. Step 4: Simplify right side
    573,611.10x = 264,914,198,618.49
  5. Step 5: Solve for x
    x = 264,914,198,618.49/573,611.10
  6. Step 6: Final answer
    x = 461,835.90

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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.