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Finding the Fourth Proportional to 569,910.20, 854,865.30 and 561,615.80

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Solution

The fourth proportional to 569,910.20, 854,865.30 and 561,615.80 is: 842,423.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,910.20 : 854,865.30 = 561,615.80 : x
  2. Step 2: Convert to fraction form
    569,910.20/854,865.30 = 561,615.80/x
  3. Step 3: Cross multiply
    569,910.20x = 854,865.30 × 561,615.80
  4. Step 4: Simplify right side
    569,910.20x = 480,105,859,351.74
  5. Step 5: Solve for x
    x = 480,105,859,351.74/569,910.20
  6. Step 6: Final answer
    x = 842,423.70

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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.