Home / 931,616.70-1,285,738.11-518,195.22

Finding the Fourth Proportional to 931,616.70, 1,285,738.11 and 518,195.22

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Solution

The fourth proportional to 931,616.70, 1,285,738.11 and 518,195.22 is: 715,168.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,616.70 : 1,285,738.11 = 518,195.22 : x
  2. Step 2: Convert to fraction form
    931,616.70/1,285,738.11 = 518,195.22/x
  3. Step 3: Cross multiply
    931,616.70x = 1,285,738.11 × 518,195.22
  4. Step 4: Simplify right side
    931,616.70x = 666,263,342,773.83
  5. Step 5: Solve for x
    x = 666,263,342,773.83/931,616.70
  6. Step 6: Final answer
    x = 715,168.96

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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.