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Finding the Fourth Proportional to 879,399.60, 1,233,958.80 and 879,399.60

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Solution

The fourth proportional to 879,399.60, 1,233,958.80 and 879,399.60 is: 1,233,958.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,399.60 : 1,233,958.80 = 879,399.60 : x
  2. Step 2: Convert to fraction form
    879,399.60/1,233,958.80 = 879,399.60/x
  3. Step 3: Cross multiply
    879,399.60x = 1,233,958.80 × 879,399.60
  4. Step 4: Simplify right side
    879,399.60x = 1,085,142,875,136.48
  5. Step 5: Solve for x
    x = 1,085,142,875,136.48/879,399.60
  6. Step 6: Final answer
    x = 1,233,958.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.