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Finding the Fourth Proportional to 605,884.40, 910,794.90 and 519,279.20

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Solution

The fourth proportional to 605,884.40, 910,794.90 and 519,279.20 is: 780,605.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,884.40 : 910,794.90 = 519,279.20 : x
  2. Step 2: Convert to fraction form
    605,884.40/910,794.90 = 519,279.20/x
  3. Step 3: Cross multiply
    605,884.40x = 910,794.90 × 519,279.20
  4. Step 4: Simplify right side
    605,884.40x = 472,956,847,036.08
  5. Step 5: Solve for x
    x = 472,956,847,036.08/605,884.40
  6. Step 6: Final answer
    x = 780,605.75

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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.