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Finding the Fourth Proportional to 569,910,591.80, 854,865,887.70 and 388,512,063.80

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Solution

The fourth proportional to 569,910,591.80, 854,865,887.70 and 388,512,063.80 is: 582,768,095.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,910,591.80 : 854,865,887.70 = 388,512,063.80 : x
  2. Step 2: Convert to fraction form
    569,910,591.80/854,865,887.70 = 388,512,063.80/x
  3. Step 3: Cross multiply
    569,910,591.80x = 854,865,887.70 × 388,512,063.80
  4. Step 4: Simplify right side
    569,910,591.80x = 332,125,710,302,546,048
  5. Step 5: Solve for x
    x = 332,125,710,302,546,048/569,910,591.80
  6. Step 6: Final answer
    x = 582,768,095.70

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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.