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Finding the Fourth Proportional to 605,856.10, 908,006.55 and 368,947.30

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Solution

The fourth proportional to 605,856.10, 908,006.55 and 368,947.30 is: 552,947.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,856.10 : 908,006.55 = 368,947.30 : x
  2. Step 2: Convert to fraction form
    605,856.10/908,006.55 = 368,947.30/x
  3. Step 3: Cross multiply
    605,856.10x = 908,006.55 × 368,947.30
  4. Step 4: Simplify right side
    605,856.10x = 335,006,565,004.82
  5. Step 5: Solve for x
    x = 335,006,565,004.82/605,856.10
  6. Step 6: Final answer
    x = 552,947.42

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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.