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Finding the Fourth Proportional to 612,060,920.60, 918,091,380.90 and 573,797,168.60

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Solution

The fourth proportional to 612,060,920.60, 918,091,380.90 and 573,797,168.60 is: 860,695,752.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,060,920.60 : 918,091,380.90 = 573,797,168.60 : x
  2. Step 2: Convert to fraction form
    612,060,920.60/918,091,380.90 = 573,797,168.60/x
  3. Step 3: Cross multiply
    612,060,920.60x = 918,091,380.90 × 573,797,168.60
  4. Step 4: Simplify right side
    612,060,920.60x = 526,798,234,876,484,096
  5. Step 5: Solve for x
    x = 526,798,234,876,484,096/612,060,920.60
  6. Step 6: Final answer
    x = 860,695,752.90

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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.