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Finding the Fourth Proportional to 567,336.95, 851,263.76 and 212,378.64

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Solution

The fourth proportional to 567,336.95, 851,263.76 and 212,378.64 is: 318,664.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,336.95 : 851,263.76 = 212,378.64 : x
  2. Step 2: Convert to fraction form
    567,336.95/851,263.76 = 212,378.64/x
  3. Step 3: Cross multiply
    567,336.95x = 851,263.76 × 212,378.64
  4. Step 4: Simplify right side
    567,336.95x = 180,790,238,568.19
  5. Step 5: Solve for x
    x = 180,790,238,568.19/567,336.95
  6. Step 6: Final answer
    x = 318,664.67

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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.