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Finding the Fourth Proportional to 416,503.28, 574,344.92 and 356,273.30

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Solution

The fourth proportional to 416,503.28, 574,344.92 and 356,273.30 is: 491,289.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,503.28 : 574,344.92 = 356,273.30 : x
  2. Step 2: Convert to fraction form
    416,503.28/574,344.92 = 356,273.30/x
  3. Step 3: Cross multiply
    416,503.28x = 574,344.92 × 356,273.30
  4. Step 4: Simplify right side
    416,503.28x = 204,623,758,005.60
  5. Step 5: Solve for x
    x = 204,623,758,005.60/416,503.28
  6. Step 6: Final answer
    x = 491,289.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.