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Finding the Fourth Proportional to 577,343.70, 864,375.30 and 545,923.80

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Solution

The fourth proportional to 577,343.70, 864,375.30 and 545,923.80 is: 817,334.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,343.70 : 864,375.30 = 545,923.80 : x
  2. Step 2: Convert to fraction form
    577,343.70/864,375.30 = 545,923.80/x
  3. Step 3: Cross multiply
    577,343.70x = 864,375.30 × 545,923.80
  4. Step 4: Simplify right side
    577,343.70x = 471,883,048,402.14
  5. Step 5: Solve for x
    x = 471,883,048,402.14/577,343.70
  6. Step 6: Final answer
    x = 817,334.71

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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.