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Finding the Fourth Proportional to 622,911.61, 934,211.89 and 202,307.77

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Solution

The fourth proportional to 622,911.61, 934,211.89 and 202,307.77 is: 303,411.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,911.61 : 934,211.89 = 202,307.77 : x
  2. Step 2: Convert to fraction form
    622,911.61/934,211.89 = 202,307.77/x
  3. Step 3: Cross multiply
    622,911.61x = 934,211.89 × 202,307.77
  4. Step 4: Simplify right side
    622,911.61x = 188,998,324,173.39
  5. Step 5: Solve for x
    x = 188,998,324,173.39/622,911.61
  6. Step 6: Final answer
    x = 303,411.14

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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.