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Finding the Fourth Proportional to 621,350.37, 932,027.76 and 189,072

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Solution

The fourth proportional to 621,350.37, 932,027.76 and 189,072 is: 283,608.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,350.37 : 932,027.76 = 189,072 : x
  2. Step 2: Convert to fraction form
    621,350.37/932,027.76 = 189,072/x
  3. Step 3: Cross multiply
    621,350.37x = 932,027.76 × 189,072
  4. Step 4: Simplify right side
    621,350.37x = 176,220,352,638.72
  5. Step 5: Solve for x
    x = 176,220,352,638.72/621,350.37
  6. Step 6: Final answer
    x = 283,608.67

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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.