Home / 280,016.79-386,422.44-152,692.38

Finding the Fourth Proportional to 280,016.79, 386,422.44 and 152,692.38

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Solution

The fourth proportional to 280,016.79, 386,422.44 and 152,692.38 is: 210,715.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,016.79 : 386,422.44 = 152,692.38 : x
  2. Step 2: Convert to fraction form
    280,016.79/386,422.44 = 152,692.38/x
  3. Step 3: Cross multiply
    280,016.79x = 386,422.44 × 152,692.38
  4. Step 4: Simplify right side
    280,016.79x = 59,003,762,049.01
  5. Step 5: Solve for x
    x = 59,003,762,049.01/280,016.79
  6. Step 6: Final answer
    x = 210,715.09

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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.