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Finding the Fourth Proportional to 457,347.94, 631,127.89 and 263,751.05

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Solution

The fourth proportional to 457,347.94, 631,127.89 and 263,751.05 is: 363,969.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,347.94 : 631,127.89 = 263,751.05 : x
  2. Step 2: Convert to fraction form
    457,347.94/631,127.89 = 263,751.05/x
  3. Step 3: Cross multiply
    457,347.94x = 631,127.89 × 263,751.05
  4. Step 4: Simplify right side
    457,347.94x = 166,460,643,671.79
  5. Step 5: Solve for x
    x = 166,460,643,671.79/457,347.94
  6. Step 6: Final answer
    x = 363,969.37

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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.