Home / 869,191.57-1,199,480.60-487,218.36

Finding the Fourth Proportional to 869,191.57, 1,199,480.60 and 487,218.36

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Solution

The fourth proportional to 869,191.57, 1,199,480.60 and 487,218.36 is: 672,359.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,191.57 : 1,199,480.60 = 487,218.36 : x
  2. Step 2: Convert to fraction form
    869,191.57/1,199,480.60 = 487,218.36/x
  3. Step 3: Cross multiply
    869,191.57x = 1,199,480.60 × 487,218.36
  4. Step 4: Simplify right side
    869,191.57x = 584,408,970,783.82
  5. Step 5: Solve for x
    x = 584,408,970,783.82/869,191.57
  6. Step 6: Final answer
    x = 672,359.23

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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.