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Finding the Fourth Proportional to 605,622.60, 908,433.90 and 368,843.40

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Solution

The fourth proportional to 605,622.60, 908,433.90 and 368,843.40 is: 553,265.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,622.60 : 908,433.90 = 368,843.40 : x
  2. Step 2: Convert to fraction form
    605,622.60/908,433.90 = 368,843.40/x
  3. Step 3: Cross multiply
    605,622.60x = 908,433.90 × 368,843.40
  4. Step 4: Simplify right side
    605,622.60x = 335,069,848,351.26
  5. Step 5: Solve for x
    x = 335,069,848,351.26/605,622.60
  6. Step 6: Final answer
    x = 553,265.10

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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.