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Finding the Fourth Proportional to 569,910,590.80, 854,865,886.20 and 388,512,062.80

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Solution

The fourth proportional to 569,910,590.80, 854,865,886.20 and 388,512,062.80 is: 582,768,094.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,910,590.80 : 854,865,886.20 = 388,512,062.80 : x
  2. Step 2: Convert to fraction form
    569,910,590.80/854,865,886.20 = 388,512,062.80/x
  3. Step 3: Cross multiply
    569,910,590.80x = 854,865,886.20 × 388,512,062.80
  4. Step 4: Simplify right side
    569,910,590.80x = 332,125,708,864,912,064
  5. Step 5: Solve for x
    x = 332,125,708,864,912,064/569,910,590.80
  6. Step 6: Final answer
    x = 582,768,094.20

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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.