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Finding the Fourth Proportional to 622,092.86, 931,644.62 and 355,043.76

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Solution

The fourth proportional to 622,092.86, 931,644.62 and 355,043.76 is: 531,712.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,092.86 : 931,644.62 = 355,043.76 : x
  2. Step 2: Convert to fraction form
    622,092.86/931,644.62 = 355,043.76/x
  3. Step 3: Cross multiply
    622,092.86x = 931,644.62 × 355,043.76
  4. Step 4: Simplify right side
    622,092.86x = 330,774,610,171.60
  5. Step 5: Solve for x
    x = 330,774,610,171.60/622,092.86
  6. Step 6: Final answer
    x = 531,712.59

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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.