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Finding the Fourth Proportional to 662,556.40, 993,834.60 and 617,941.60

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Solution

The fourth proportional to 662,556.40, 993,834.60 and 617,941.60 is: 926,912.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,556.40 : 993,834.60 = 617,941.60 : x
  2. Step 2: Convert to fraction form
    662,556.40/993,834.60 = 617,941.60/x
  3. Step 3: Cross multiply
    662,556.40x = 993,834.60 × 617,941.60
  4. Step 4: Simplify right side
    662,556.40x = 614,131,742,859.36
  5. Step 5: Solve for x
    x = 614,131,742,859.36/662,556.40
  6. Step 6: Final answer
    x = 926,912.40

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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.