Home / 863,665.24-1,191,860.10-481,716.76

Finding the Fourth Proportional to 863,665.24, 1,191,860.10 and 481,716.76

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Solution

The fourth proportional to 863,665.24, 1,191,860.10 and 481,716.76 is: 664,770.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,665.24 : 1,191,860.10 = 481,716.76 : x
  2. Step 2: Convert to fraction form
    863,665.24/1,191,860.10 = 481,716.76/x
  3. Step 3: Cross multiply
    863,665.24x = 1,191,860.10 × 481,716.76
  4. Step 4: Simplify right side
    863,665.24x = 574,138,985,745.28
  5. Step 5: Solve for x
    x = 574,138,985,745.28/863,665.24
  6. Step 6: Final answer
    x = 664,770.28

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Half scale
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Double scale
Find fourth proportional to 863,666.24, 1,191,861.48 and 481,717.76
Similar ratio
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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.