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Finding the Fourth Proportional to 573,273.58, 789,310.56 and 520,129.48

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Solution

The fourth proportional to 573,273.58, 789,310.56 and 520,129.48 is: 716,139.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,273.58 : 789,310.56 = 520,129.48 : x
  2. Step 2: Convert to fraction form
    573,273.58/789,310.56 = 520,129.48/x
  3. Step 3: Cross multiply
    573,273.58x = 789,310.56 × 520,129.48
  4. Step 4: Simplify right side
    573,273.58x = 410,543,691,131.31
  5. Step 5: Solve for x
    x = 410,543,691,131.31/573,273.58
  6. Step 6: Final answer
    x = 716,139.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.