Home / 491,193.12-677,818.80-276,342.24

Finding the Fourth Proportional to 491,193.12, 677,818.80 and 276,342.24

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Solution

The fourth proportional to 491,193.12, 677,818.80 and 276,342.24 is: 381,336.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,193.12 : 677,818.80 = 276,342.24 : x
  2. Step 2: Convert to fraction form
    491,193.12/677,818.80 = 276,342.24/x
  3. Step 3: Cross multiply
    491,193.12x = 677,818.80 × 276,342.24
  4. Step 4: Simplify right side
    491,193.12x = 187,309,965,506.11
  5. Step 5: Solve for x
    x = 187,309,965,506.11/491,193.12
  6. Step 6: Final answer
    x = 381,336.70

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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.