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Finding the Fourth Proportional to 541,279.80, 811,919.70 and 525,727.80

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Solution

The fourth proportional to 541,279.80, 811,919.70 and 525,727.80 is: 788,591.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,279.80 : 811,919.70 = 525,727.80 : x
  2. Step 2: Convert to fraction form
    541,279.80/811,919.70 = 525,727.80/x
  3. Step 3: Cross multiply
    541,279.80x = 811,919.70 × 525,727.80
  4. Step 4: Simplify right side
    541,279.80x = 426,848,757,657.66
  5. Step 5: Solve for x
    x = 426,848,757,657.66/541,279.80
  6. Step 6: Final answer
    x = 788,591.70

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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.