Home / 868,705.63-1,198,812.96-486,735.15

Finding the Fourth Proportional to 868,705.63, 1,198,812.96 and 486,735.15

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Solution

The fourth proportional to 868,705.63, 1,198,812.96 and 486,735.15 is: 671,694.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,705.63 : 1,198,812.96 = 486,735.15 : x
  2. Step 2: Convert to fraction form
    868,705.63/1,198,812.96 = 486,735.15/x
  3. Step 3: Cross multiply
    868,705.63x = 1,198,812.96 × 486,735.15
  4. Step 4: Simplify right side
    868,705.63x = 583,504,405,907.54
  5. Step 5: Solve for x
    x = 583,504,405,907.54/868,705.63
  6. Step 6: Final answer
    x = 671,694.05

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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.