Home / 490,951.01-677,516.45-276,089.19

Finding the Fourth Proportional to 490,951.01, 677,516.45 and 276,089.19

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Solution

The fourth proportional to 490,951.01, 677,516.45 and 276,089.19 is: 381,005.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,951.01 : 677,516.45 = 276,089.19 : x
  2. Step 2: Convert to fraction form
    490,951.01/677,516.45 = 276,089.19/x
  3. Step 3: Cross multiply
    490,951.01x = 677,516.45 × 276,089.19
  4. Step 4: Simplify right side
    490,951.01x = 187,054,966,511.73
  5. Step 5: Solve for x
    x = 187,054,966,511.73/490,951.01
  6. Step 6: Final answer
    x = 381,005.36

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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.