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Finding the Fourth Proportional to 372,663.34, 514,321.86 and 211,570.54

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Solution

The fourth proportional to 372,663.34, 514,321.86 and 211,570.54 is: 291,993.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,663.34 : 514,321.86 = 211,570.54 : x
  2. Step 2: Convert to fraction form
    372,663.34/514,321.86 = 211,570.54/x
  3. Step 3: Cross multiply
    372,663.34x = 514,321.86 × 211,570.54
  4. Step 4: Simplify right side
    372,663.34x = 108,815,353,654.00
  5. Step 5: Solve for x
    x = 108,815,353,654.00/372,663.34
  6. Step 6: Final answer
    x = 291,993.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.