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Finding the Fourth Proportional to 457,628.96, 631,502.16 and 266,673.44

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Solution

The fourth proportional to 457,628.96, 631,502.16 and 266,673.44 is: 367,994.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,628.96 : 631,502.16 = 266,673.44 : x
  2. Step 2: Convert to fraction form
    457,628.96/631,502.16 = 266,673.44/x
  3. Step 3: Cross multiply
    457,628.96x = 631,502.16 × 266,673.44
  4. Step 4: Simplify right side
    457,628.96x = 168,404,853,374.63
  5. Step 5: Solve for x
    x = 168,404,853,374.63/457,628.96
  6. Step 6: Final answer
    x = 367,994.31

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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.