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Finding the Fourth Proportional to 478,530,562.60, 717,795,843.90 and 155,447,093.80

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Solution

The fourth proportional to 478,530,562.60, 717,795,843.90 and 155,447,093.80 is: 233,170,640.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,530,562.60 : 717,795,843.90 = 155,447,093.80 : x
  2. Step 2: Convert to fraction form
    478,530,562.60/717,795,843.90 = 155,447,093.80/x
  3. Step 3: Cross multiply
    478,530,562.60x = 717,795,843.90 × 155,447,093.80
  4. Step 4: Simplify right side
    478,530,562.60x = 111,579,277,875,973,456
  5. Step 5: Solve for x
    x = 111,579,277,875,973,456/478,530,562.60
  6. Step 6: Final answer
    x = 233,170,640.70

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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.