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Finding the Fourth Proportional to 621,353.61, 931,615.23 and 501,557.97

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Solution

The fourth proportional to 621,353.61, 931,615.23 and 501,557.97 is: 752,001.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,353.61 : 931,615.23 = 501,557.97 : x
  2. Step 2: Convert to fraction form
    621,353.61/931,615.23 = 501,557.97/x
  3. Step 3: Cross multiply
    621,353.61x = 931,615.23 × 501,557.97
  4. Step 4: Simplify right side
    621,353.61x = 467,259,043,579.88
  5. Step 5: Solve for x
    x = 467,259,043,579.88/621,353.61
  6. Step 6: Final answer
    x = 752,001.82

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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.