Home / 874,381.57-1,206,628.38-487,195.43

Finding the Fourth Proportional to 874,381.57, 1,206,628.38 and 487,195.43

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Solution

The fourth proportional to 874,381.57, 1,206,628.38 and 487,195.43 is: 672,319.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,381.57 : 1,206,628.38 = 487,195.43 : x
  2. Step 2: Convert to fraction form
    874,381.57/1,206,628.38 = 487,195.43/x
  3. Step 3: Cross multiply
    874,381.57x = 1,206,628.38 × 487,195.43
  4. Step 4: Simplify right side
    874,381.57x = 587,863,831,011.78
  5. Step 5: Solve for x
    x = 587,863,831,011.78/874,381.57
  6. Step 6: Final answer
    x = 672,319.56

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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.