Home / 913,759.72-1,261,120.36-526,500.96

Finding the Fourth Proportional to 913,759.72, 1,261,120.36 and 526,500.96

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Solution

The fourth proportional to 913,759.72, 1,261,120.36 and 526,500.96 is: 726,647.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,759.72 : 1,261,120.36 = 526,500.96 : x
  2. Step 2: Convert to fraction form
    913,759.72/1,261,120.36 = 526,500.96/x
  3. Step 3: Cross multiply
    913,759.72x = 1,261,120.36 × 526,500.96
  4. Step 4: Simplify right side
    913,759.72x = 663,981,080,215.55
  5. Step 5: Solve for x
    x = 663,981,080,215.55/913,759.72
  6. Step 6: Final answer
    x = 726,647.35

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Double scale
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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.