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Finding the Fourth Proportional to 354,311.70, 531,467.55 and 349,062.90

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Solution

The fourth proportional to 354,311.70, 531,467.55 and 349,062.90 is: 523,594.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,311.70 : 531,467.55 = 349,062.90 : x
  2. Step 2: Convert to fraction form
    354,311.70/531,467.55 = 349,062.90/x
  3. Step 3: Cross multiply
    354,311.70x = 531,467.55 × 349,062.90
  4. Step 4: Simplify right side
    354,311.70x = 185,515,604,258.90
  5. Step 5: Solve for x
    x = 185,515,604,258.90/354,311.70
  6. Step 6: Final answer
    x = 523,594.35

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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.