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Finding the Fourth Proportional to 392,233.76, 587,160.96 and 354,809.60

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Solution

The fourth proportional to 392,233.76, 587,160.96 and 354,809.60 is: 531,138.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,233.76 : 587,160.96 = 354,809.60 : x
  2. Step 2: Convert to fraction form
    392,233.76/587,160.96 = 354,809.60/x
  3. Step 3: Cross multiply
    392,233.76x = 587,160.96 × 354,809.60
  4. Step 4: Simplify right side
    392,233.76x = 208,330,345,353.22
  5. Step 5: Solve for x
    x = 208,330,345,353.22/392,233.76
  6. Step 6: Final answer
    x = 531,138.23

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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.