Home / 878,793.98-1,212,719.64-496,820.86

Finding the Fourth Proportional to 878,793.98, 1,212,719.64 and 496,820.86

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Solution

The fourth proportional to 878,793.98, 1,212,719.64 and 496,820.86 is: 685,603.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,793.98 : 1,212,719.64 = 496,820.86 : x
  2. Step 2: Convert to fraction form
    878,793.98/1,212,719.64 = 496,820.86/x
  3. Step 3: Cross multiply
    878,793.98x = 1,212,719.64 × 496,820.86
  4. Step 4: Simplify right side
    878,793.98x = 602,504,414,483.69
  5. Step 5: Solve for x
    x = 602,504,414,483.69/878,793.98
  6. Step 6: Final answer
    x = 685,603.71

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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.