Home / 867,515.44-1,197,171.15-485,542.21

Finding the Fourth Proportional to 867,515.44, 1,197,171.15 and 485,542.21

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Solution

The fourth proportional to 867,515.44, 1,197,171.15 and 485,542.21 is: 670,048.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,515.44 : 1,197,171.15 = 485,542.21 : x
  2. Step 2: Convert to fraction form
    867,515.44/1,197,171.15 = 485,542.21/x
  3. Step 3: Cross multiply
    867,515.44x = 1,197,171.15 × 485,542.21
  4. Step 4: Simplify right side
    867,515.44x = 581,277,125,919.24
  5. Step 5: Solve for x
    x = 581,277,125,919.24/867,515.44
  6. Step 6: Final answer
    x = 670,048.16

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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.