Home / 874,286.33-1,206,535.32-487,127.39

Finding the Fourth Proportional to 874,286.33, 1,206,535.32 and 487,127.39

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Solution

The fourth proportional to 874,286.33, 1,206,535.32 and 487,127.39 is: 672,247.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,286.33 : 1,206,535.32 = 487,127.39 : x
  2. Step 2: Convert to fraction form
    874,286.33/1,206,535.32 = 487,127.39/x
  3. Step 3: Cross multiply
    874,286.33x = 1,206,535.32 × 487,127.39
  4. Step 4: Simplify right side
    874,286.33x = 587,736,395,341.74
  5. Step 5: Solve for x
    x = 587,736,395,341.74/874,286.33
  6. Step 6: Final answer
    x = 672,247.04

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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.