Home / 868,840.01-1,198,995.87-486,866.78

Finding the Fourth Proportional to 868,840.01, 1,198,995.87 and 486,866.78

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Solution

The fourth proportional to 868,840.01, 1,198,995.87 and 486,866.78 is: 671,874.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,840.01 : 1,198,995.87 = 486,866.78 : x
  2. Step 2: Convert to fraction form
    868,840.01/1,198,995.87 = 486,866.78/x
  3. Step 3: Cross multiply
    868,840.01x = 1,198,995.87 × 486,866.78
  4. Step 4: Simplify right side
    868,840.01x = 583,751,252,465.22
  5. Step 5: Solve for x
    x = 583,751,252,465.22/868,840.01
  6. Step 6: Final answer
    x = 671,874.28

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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.