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Finding the Fourth Proportional to 354,901.90, 532,352.85 and 228,930.70

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Solution

The fourth proportional to 354,901.90, 532,352.85 and 228,930.70 is: 343,396.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,901.90 : 532,352.85 = 228,930.70 : x
  2. Step 2: Convert to fraction form
    354,901.90/532,352.85 = 228,930.70/x
  3. Step 3: Cross multiply
    354,901.90x = 532,352.85 × 228,930.70
  4. Step 4: Simplify right side
    354,901.90x = 121,871,910,597.50
  5. Step 5: Solve for x
    x = 121,871,910,597.50/354,901.90
  6. Step 6: Final answer
    x = 343,396.05

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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.