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Finding the Fourth Proportional to 332,490.56, 458,870 and 198,354.56

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Solution

The fourth proportional to 332,490.56, 458,870 and 198,354.56 is: 273,749.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,490.56 : 458,870 = 198,354.56 : x
  2. Step 2: Convert to fraction form
    332,490.56/458,870 = 198,354.56/x
  3. Step 3: Cross multiply
    332,490.56x = 458,870 × 198,354.56
  4. Step 4: Simplify right side
    332,490.56x = 91,018,956,947.20
  5. Step 5: Solve for x
    x = 91,018,956,947.20/332,490.56
  6. Step 6: Final answer
    x = 273,749.00

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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.