Home / 724,567,328.60-1,091,690,722.43-655,568,575.88

Finding the Fourth Proportional to 724,567,328.60, 1,091,690,722.43 and 655,568,575.88

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Solution

The fourth proportional to 724,567,328.60, 1,091,690,722.43 and 655,568,575.88 is: 987,731,717.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,567,328.60 : 1,091,690,722.43 = 655,568,575.88 : x
  2. Step 2: Convert to fraction form
    724,567,328.60/1,091,690,722.43 = 655,568,575.88/x
  3. Step 3: Cross multiply
    724,567,328.60x = 1,091,690,722.43 × 655,568,575.88
  4. Step 4: Simplify right side
    724,567,328.60x = 715,678,132,204,843,520
  5. Step 5: Solve for x
    x = 715,678,132,204,843,520/724,567,328.60
  6. Step 6: Final answer
    x = 987,731,717.89

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.