Home / 724,567,325.10-1,091,690,717.15-655,568,572.38

Finding the Fourth Proportional to 724,567,325.10, 1,091,690,717.15 and 655,568,572.38

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Solution

The fourth proportional to 724,567,325.10, 1,091,690,717.15 and 655,568,572.38 is: 987,731,712.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,567,325.10 : 1,091,690,717.15 = 655,568,572.38 : x
  2. Step 2: Convert to fraction form
    724,567,325.10/1,091,690,717.15 = 655,568,572.38/x
  3. Step 3: Cross multiply
    724,567,325.10x = 1,091,690,717.15 × 655,568,572.38
  4. Step 4: Simplify right side
    724,567,325.10x = 715,678,124,919,246,080
  5. Step 5: Solve for x
    x = 715,678,124,919,246,080/724,567,325.10
  6. Step 6: Final answer
    x = 987,731,712.61

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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.