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Finding the Fourth Proportional to 706,956.40, 1,058,879.40 and 691,404.40

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Solution

The fourth proportional to 706,956.40, 1,058,879.40 and 691,404.40 is: 1,035,585.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,956.40 : 1,058,879.40 = 691,404.40 : x
  2. Step 2: Convert to fraction form
    706,956.40/1,058,879.40 = 691,404.40/x
  3. Step 3: Cross multiply
    706,956.40x = 1,058,879.40 × 691,404.40
  4. Step 4: Simplify right side
    706,956.40x = 732,113,876,229.36
  5. Step 5: Solve for x
    x = 732,113,876,229.36/706,956.40
  6. Step 6: Final answer
    x = 1,035,585.61

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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.