Home / 863,392.61-1,191,518.69-481,419.38

Finding the Fourth Proportional to 863,392.61, 1,191,518.69 and 481,419.38

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Solution

The fourth proportional to 863,392.61, 1,191,518.69 and 481,419.38 is: 664,379.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,392.61 : 1,191,518.69 = 481,419.38 : x
  2. Step 2: Convert to fraction form
    863,392.61/1,191,518.69 = 481,419.38/x
  3. Step 3: Cross multiply
    863,392.61x = 1,191,518.69 × 481,419.38
  4. Step 4: Simplify right side
    863,392.61x = 573,620,180,633.52
  5. Step 5: Solve for x
    x = 573,620,180,633.52/863,392.61
  6. Step 6: Final answer
    x = 664,379.31

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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.