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Finding the Fourth Proportional to 683,611.80, 1,025,417.70 and 683,611.80

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Solution

The fourth proportional to 683,611.80, 1,025,417.70 and 683,611.80 is: 1,025,417.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,611.80 : 1,025,417.70 = 683,611.80 : x
  2. Step 2: Convert to fraction form
    683,611.80/1,025,417.70 = 683,611.80/x
  3. Step 3: Cross multiply
    683,611.80x = 1,025,417.70 × 683,611.80
  4. Step 4: Simplify right side
    683,611.80x = 700,987,639,648.86
  5. Step 5: Solve for x
    x = 700,987,639,648.86/683,611.80
  6. Step 6: Final answer
    x = 1,025,417.70

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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.