Home / 913,760.72-1,261,121.74-526,501.96

Finding the Fourth Proportional to 913,760.72, 1,261,121.74 and 526,501.96

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Solution

The fourth proportional to 913,760.72, 1,261,121.74 and 526,501.96 is: 726,648.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,760.72 : 1,261,121.74 = 526,501.96 : x
  2. Step 2: Convert to fraction form
    913,760.72/1,261,121.74 = 526,501.96/x
  3. Step 3: Cross multiply
    913,760.72x = 1,261,121.74 × 526,501.96
  4. Step 4: Simplify right side
    913,760.72x = 663,983,067,908.61
  5. Step 5: Solve for x
    x = 663,983,067,908.61/913,760.72
  6. Step 6: Final answer
    x = 726,648.73

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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.