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Finding the Fourth Proportional to 874,843.32, 1,199,410.04 and 858,900.08

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Solution

The fourth proportional to 874,843.32, 1,199,410.04 and 858,900.08 is: 1,177,551.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,843.32 : 1,199,410.04 = 858,900.08 : x
  2. Step 2: Convert to fraction form
    874,843.32/1,199,410.04 = 858,900.08/x
  3. Step 3: Cross multiply
    874,843.32x = 1,199,410.04 × 858,900.08
  4. Step 4: Simplify right side
    874,843.32x = 1,030,173,379,308.80
  5. Step 5: Solve for x
    x = 1,030,173,379,308.80/874,843.32
  6. Step 6: Final answer
    x = 1,177,551.86

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.