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Finding the Fourth Proportional to 471,253.60, 705,843.60 and 409,045.60

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Solution

The fourth proportional to 471,253.60, 705,843.60 and 409,045.60 is: 612,668.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,253.60 : 705,843.60 = 409,045.60 : x
  2. Step 2: Convert to fraction form
    471,253.60/705,843.60 = 409,045.60/x
  3. Step 3: Cross multiply
    471,253.60x = 705,843.60 × 409,045.60
  4. Step 4: Simplify right side
    471,253.60x = 288,722,218,868.16
  5. Step 5: Solve for x
    x = 288,722,218,868.16/471,253.60
  6. Step 6: Final answer
    x = 612,668.46

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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.