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Finding the Fourth Proportional to 665,371.88, 998,065.74 and 185,570.49

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Solution

The fourth proportional to 665,371.88, 998,065.74 and 185,570.49 is: 278,357.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,371.88 : 998,065.74 = 185,570.49 : x
  2. Step 2: Convert to fraction form
    665,371.88/998,065.74 = 185,570.49/x
  3. Step 3: Cross multiply
    665,371.88x = 998,065.74 × 185,570.49
  4. Step 4: Simplify right side
    665,371.88x = 185,211,548,424.01
  5. Step 5: Solve for x
    x = 185,211,548,424.01/665,371.88
  6. Step 6: Final answer
    x = 278,357.94

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Similar ratio
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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.