Home / 874,712.59-1,206,690.82-511,911.77

Finding the Fourth Proportional to 874,712.59, 1,206,690.82 and 511,911.77

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Solution

The fourth proportional to 874,712.59, 1,206,690.82 and 511,911.77 is: 706,196.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,712.59 : 1,206,690.82 = 511,911.77 : x
  2. Step 2: Convert to fraction form
    874,712.59/1,206,690.82 = 511,911.77/x
  3. Step 3: Cross multiply
    874,712.59x = 1,206,690.82 × 511,911.77
  4. Step 4: Simplify right side
    874,712.59x = 617,719,226,195.72
  5. Step 5: Solve for x
    x = 617,719,226,195.72/874,712.59
  6. Step 6: Final answer
    x = 706,196.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.