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Finding the Fourth Proportional to 707,846.40, 1,063,843.20 and 695,404.80

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Solution

The fourth proportional to 707,846.40, 1,063,843.20 and 695,404.80 is: 1,045,144.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,846.40 : 1,063,843.20 = 695,404.80 : x
  2. Step 2: Convert to fraction form
    707,846.40/1,063,843.20 = 695,404.80/x
  3. Step 3: Cross multiply
    707,846.40x = 1,063,843.20 × 695,404.80
  4. Step 4: Simplify right side
    707,846.40x = 739,801,667,727.36
  5. Step 5: Solve for x
    x = 739,801,667,727.36/707,846.40
  6. Step 6: Final answer
    x = 1,045,144.35

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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.