Home / 878,543.20-1,212,376.98-496,556.92

Finding the Fourth Proportional to 878,543.20, 1,212,376.98 and 496,556.92

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Solution

The fourth proportional to 878,543.20, 1,212,376.98 and 496,556.92 is: 685,241.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,543.20 : 1,212,376.98 = 496,556.92 : x
  2. Step 2: Convert to fraction form
    878,543.20/1,212,376.98 = 496,556.92/x
  3. Step 3: Cross multiply
    878,543.20x = 1,212,376.98 × 496,556.92
  4. Step 4: Simplify right side
    878,543.20x = 602,014,179,067.70
  5. Step 5: Solve for x
    x = 602,014,179,067.70/878,543.20
  6. Step 6: Final answer
    x = 685,241.41

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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.