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Finding the Fourth Proportional to 891,906, 1,337,845.44 and 618,099.60

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Solution

The fourth proportional to 891,906, 1,337,845.44 and 618,099.60 is: 927,140.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,906 : 1,337,845.44 = 618,099.60 : x
  2. Step 2: Convert to fraction form
    891,906/1,337,845.44 = 618,099.60/x
  3. Step 3: Cross multiply
    891,906x = 1,337,845.44 × 618,099.60
  4. Step 4: Simplify right side
    891,906x = 826,921,731,325.82
  5. Step 5: Solve for x
    x = 826,921,731,325.82/891,906
  6. Step 6: Final answer
    x = 927,140.00

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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.