Home / 868,618.08-1,198,742.22-486,767.88

Finding the Fourth Proportional to 868,618.08, 1,198,742.22 and 486,767.88

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Solution

The fourth proportional to 868,618.08, 1,198,742.22 and 486,767.88 is: 671,767.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,618.08 : 1,198,742.22 = 486,767.88 : x
  2. Step 2: Convert to fraction form
    868,618.08/1,198,742.22 = 486,767.88/x
  3. Step 3: Cross multiply
    868,618.08x = 1,198,742.22 × 486,767.88
  4. Step 4: Simplify right side
    868,618.08x = 583,509,209,095.89
  5. Step 5: Solve for x
    x = 583,509,209,095.89/868,618.08
  6. Step 6: Final answer
    x = 671,767.28

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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.