Home / 683,870.80-1,025,806.20-651,211.60

Finding the Fourth Proportional to 683,870.80, 1,025,806.20 and 651,211.60

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Solution

The fourth proportional to 683,870.80, 1,025,806.20 and 651,211.60 is: 976,817.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,870.80 : 1,025,806.20 = 651,211.60 : x
  2. Step 2: Convert to fraction form
    683,870.80/1,025,806.20 = 651,211.60/x
  3. Step 3: Cross multiply
    683,870.80x = 1,025,806.20 × 651,211.60
  4. Step 4: Simplify right side
    683,870.80x = 668,016,896,791.92
  5. Step 5: Solve for x
    x = 668,016,896,791.92/683,870.80
  6. Step 6: Final answer
    x = 976,817.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.