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Finding the Fourth Proportional to 336,391.68, 504,401.40 and 133,782.60

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Solution

The fourth proportional to 336,391.68, 504,401.40 and 133,782.60 is: 200,599.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,391.68 : 504,401.40 = 133,782.60 : x
  2. Step 2: Convert to fraction form
    336,391.68/504,401.40 = 133,782.60/x
  3. Step 3: Cross multiply
    336,391.68x = 504,401.40 × 133,782.60
  4. Step 4: Simplify right side
    336,391.68x = 67,480,130,735.64
  5. Step 5: Solve for x
    x = 67,480,130,735.64/336,391.68
  6. Step 6: Final answer
    x = 200,599.88

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1.5x scale

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.