Home / 491,045.45-677,636.19-276,185.52

Finding the Fourth Proportional to 491,045.45, 677,636.19 and 276,185.52

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Solution

The fourth proportional to 491,045.45, 677,636.19 and 276,185.52 is: 381,132.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,045.45 : 677,636.19 = 276,185.52 : x
  2. Step 2: Convert to fraction form
    491,045.45/677,636.19 = 276,185.52/x
  3. Step 3: Cross multiply
    491,045.45x = 677,636.19 × 276,185.52
  4. Step 4: Simplify right side
    491,045.45x = 187,153,303,505.97
  5. Step 5: Solve for x
    x = 187,153,303,505.97/491,045.45
  6. Step 6: Final answer
    x = 381,132.35

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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.