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Finding the Fourth Proportional to 573,274.58, 789,311.94 and 520,130.48

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Solution

The fourth proportional to 573,274.58, 789,311.94 and 520,130.48 is: 716,140.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,274.58 : 789,311.94 = 520,130.48 : x
  2. Step 2: Convert to fraction form
    573,274.58/789,311.94 = 520,130.48/x
  3. Step 3: Cross multiply
    573,274.58x = 789,311.94 × 520,130.48
  4. Step 4: Simplify right side
    573,274.58x = 410,545,198,221.93
  5. Step 5: Solve for x
    x = 410,545,198,221.93/573,274.58
  6. Step 6: Final answer
    x = 716,140.59

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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.