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Finding the Fourth Proportional to 622,561.55, 934,213.70 and 323,039.75

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Solution

The fourth proportional to 622,561.55, 934,213.70 and 323,039.75 is: 484,752.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,561.55 : 934,213.70 = 323,039.75 : x
  2. Step 2: Convert to fraction form
    622,561.55/934,213.70 = 323,039.75/x
  3. Step 3: Cross multiply
    622,561.55x = 934,213.70 × 323,039.75
  4. Step 4: Simplify right side
    622,561.55x = 301,788,156,231.11
  5. Step 5: Solve for x
    x = 301,788,156,231.11/622,561.55
  6. Step 6: Final answer
    x = 484,752.32

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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.