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Finding the Fourth Proportional to 469,807.38, 648,335.88 and 254,947.39

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Solution

The fourth proportional to 469,807.38, 648,335.88 and 254,947.39 is: 351,828.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,807.38 : 648,335.88 = 254,947.39 : x
  2. Step 2: Convert to fraction form
    469,807.38/648,335.88 = 254,947.39/x
  3. Step 3: Cross multiply
    469,807.38x = 648,335.88 × 254,947.39
  4. Step 4: Simplify right side
    469,807.38x = 165,291,538,828.51
  5. Step 5: Solve for x
    x = 165,291,538,828.51/469,807.38
  6. Step 6: Final answer
    x = 351,828.31

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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.