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Finding the Fourth Proportional to 577,876.40, 866,814.60 and 573,939.80

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Solution

The fourth proportional to 577,876.40, 866,814.60 and 573,939.80 is: 860,909.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,876.40 : 866,814.60 = 573,939.80 : x
  2. Step 2: Convert to fraction form
    577,876.40/866,814.60 = 573,939.80/x
  3. Step 3: Cross multiply
    577,876.40x = 866,814.60 × 573,939.80
  4. Step 4: Simplify right side
    577,876.40x = 497,499,398,161.08
  5. Step 5: Solve for x
    x = 497,499,398,161.08/577,876.40
  6. Step 6: Final answer
    x = 860,909.70

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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.