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Finding the Fourth Proportional to 869,190.60, 1,303,785.90 and 869,190.60

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Solution

The fourth proportional to 869,190.60, 1,303,785.90 and 869,190.60 is: 1,303,785.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,190.60 : 1,303,785.90 = 869,190.60 : x
  2. Step 2: Convert to fraction form
    869,190.60/1,303,785.90 = 869,190.60/x
  3. Step 3: Cross multiply
    869,190.60x = 1,303,785.90 × 869,190.60
  4. Step 4: Simplify right side
    869,190.60x = 1,133,238,448,692.54
  5. Step 5: Solve for x
    x = 1,133,238,448,692.54/869,190.60
  6. Step 6: Final answer
    x = 1,303,785.90

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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.