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Finding the Fourth Proportional to 567,790.52, 851,652.18 and 212,774.84

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Solution

The fourth proportional to 567,790.52, 851,652.18 and 212,774.84 is: 319,149.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,790.52 : 851,652.18 = 212,774.84 : x
  2. Step 2: Convert to fraction form
    567,790.52/851,652.18 = 212,774.84/x
  3. Step 3: Cross multiply
    567,790.52x = 851,652.18 × 212,774.84
  4. Step 4: Simplify right side
    567,790.52x = 181,210,156,335.15
  5. Step 5: Solve for x
    x = 181,210,156,335.15/567,790.52
  6. Step 6: Final answer
    x = 319,149.67

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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.