Home / 986,340.43-1,361,150.09-556,711.57

Finding the Fourth Proportional to 986,340.43, 1,361,150.09 and 556,711.57

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Solution

The fourth proportional to 986,340.43, 1,361,150.09 and 556,711.57 is: 768,262.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,340.43 : 1,361,150.09 = 556,711.57 : x
  2. Step 2: Convert to fraction form
    986,340.43/1,361,150.09 = 556,711.57/x
  3. Step 3: Cross multiply
    986,340.43x = 1,361,150.09 × 556,711.57
  4. Step 4: Simplify right side
    986,340.43x = 757,768,003,609.54
  5. Step 5: Solve for x
    x = 757,768,003,609.54/986,340.43
  6. Step 6: Final answer
    x = 768,262.13

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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.