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Finding the Fourth Proportional to 605,809.60, 906,964.80 and 369,613.60

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Solution

The fourth proportional to 605,809.60, 906,964.80 and 369,613.60 is: 553,352.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,809.60 : 906,964.80 = 369,613.60 : x
  2. Step 2: Convert to fraction form
    605,809.60/906,964.80 = 369,613.60/x
  3. Step 3: Cross multiply
    605,809.60x = 906,964.80 × 369,613.60
  4. Step 4: Simplify right side
    605,809.60x = 335,226,524,801.28
  5. Step 5: Solve for x
    x = 335,226,524,801.28/605,809.60
  6. Step 6: Final answer
    x = 553,352.94

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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.