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Finding the Fourth Proportional to 608,017.89, 838,974.81 and 346,375.54

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Solution

The fourth proportional to 608,017.89, 838,974.81 and 346,375.54 is: 477,947.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,017.89 : 838,974.81 = 346,375.54 : x
  2. Step 2: Convert to fraction form
    608,017.89/838,974.81 = 346,375.54/x
  3. Step 3: Cross multiply
    608,017.89x = 838,974.81 × 346,375.54
  4. Step 4: Simplify right side
    608,017.89x = 290,600,355,207.77
  5. Step 5: Solve for x
    x = 290,600,355,207.77/608,017.89
  6. Step 6: Final answer
    x = 477,947.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.