Home / 286,769.36-395,731.38-157,706.72

Finding the Fourth Proportional to 286,769.36, 395,731.38 and 157,706.72

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Solution

The fourth proportional to 286,769.36, 395,731.38 and 157,706.72 is: 217,629.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,769.36 : 395,731.38 = 157,706.72 : x
  2. Step 2: Convert to fraction form
    286,769.36/395,731.38 = 157,706.72/x
  3. Step 3: Cross multiply
    286,769.36x = 395,731.38 × 157,706.72
  4. Step 4: Simplify right side
    286,769.36x = 62,409,497,940.87
  5. Step 5: Solve for x
    x = 62,409,497,940.87/286,769.36
  6. Step 6: Final answer
    x = 217,629.59

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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.