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Finding the Fourth Proportional to 469,896.81, 648,458.19 and 255,036.93

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Solution

The fourth proportional to 469,896.81, 648,458.19 and 255,036.93 is: 351,951.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,896.81 : 648,458.19 = 255,036.93 : x
  2. Step 2: Convert to fraction form
    469,896.81/648,458.19 = 255,036.93/x
  3. Step 3: Cross multiply
    469,896.81x = 648,458.19 × 255,036.93
  4. Step 4: Simplify right side
    469,896.81x = 165,380,786,010.96
  5. Step 5: Solve for x
    x = 165,380,786,010.96/469,896.81
  6. Step 6: Final answer
    x = 351,951.28

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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.