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Finding the Fourth Proportional to 469,896.71, 648,457.92 and 255,036.87

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Solution

The fourth proportional to 469,896.71, 648,457.92 and 255,036.87 is: 351,951.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,896.71 : 648,457.92 = 255,036.87 : x
  2. Step 2: Convert to fraction form
    469,896.71/648,457.92 = 255,036.87/x
  3. Step 3: Cross multiply
    469,896.71x = 648,457.92 × 255,036.87
  4. Step 4: Simplify right side
    469,896.71x = 165,380,678,243.51
  5. Step 5: Solve for x
    x = 165,380,678,243.51/469,896.71
  6. Step 6: Final answer
    x = 351,951.13

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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.