Home / 868,643.64-1,198,761.18-486,657.36

Finding the Fourth Proportional to 868,643.64, 1,198,761.18 and 486,657.36

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Solution

The fourth proportional to 868,643.64, 1,198,761.18 and 486,657.36 is: 671,605.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,643.64 : 1,198,761.18 = 486,657.36 : x
  2. Step 2: Convert to fraction form
    868,643.64/1,198,761.18 = 486,657.36/x
  3. Step 3: Cross multiply
    868,643.64x = 1,198,761.18 × 486,657.36
  4. Step 4: Simplify right side
    868,643.64x = 583,385,951,129.29
  5. Step 5: Solve for x
    x = 583,385,951,129.29/868,643.64
  6. Step 6: Final answer
    x = 671,605.62

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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.