Home / 855,424.22-1,180,405.41-511,191.83

Finding the Fourth Proportional to 855,424.22, 1,180,405.41 and 511,191.83

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Solution

The fourth proportional to 855,424.22, 1,180,405.41 and 511,191.83 is: 705,396.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,424.22 : 1,180,405.41 = 511,191.83 : x
  2. Step 2: Convert to fraction form
    855,424.22/1,180,405.41 = 511,191.83/x
  3. Step 3: Cross multiply
    855,424.22x = 1,180,405.41 × 511,191.83
  4. Step 4: Simplify right side
    855,424.22x = 603,413,595,777.77
  5. Step 5: Solve for x
    x = 603,413,595,777.77/855,424.22
  6. Step 6: Final answer
    x = 705,396.91

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1.5x scale

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.