Home / 412,250.72-618,464.36-127,935.05

Finding the Fourth Proportional to 412,250.72, 618,464.36 and 127,935.05

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Solution

The fourth proportional to 412,250.72, 618,464.36 and 127,935.05 is: 191,929.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,250.72 : 618,464.36 = 127,935.05 : x
  2. Step 2: Convert to fraction form
    412,250.72/618,464.36 = 127,935.05/x
  3. Step 3: Cross multiply
    412,250.72x = 618,464.36 × 127,935.05
  4. Step 4: Simplify right side
    412,250.72x = 79,123,266,047.33
  5. Step 5: Solve for x
    x = 79,123,266,047.33/412,250.72
  6. Step 6: Final answer
    x = 191,929.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.