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Finding the Fourth Proportional to 463,909.59, 640,184.37 and 272,935.26

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Solution

The fourth proportional to 463,909.59, 640,184.37 and 272,935.26 is: 376,644.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,909.59 : 640,184.37 = 272,935.26 : x
  2. Step 2: Convert to fraction form
    463,909.59/640,184.37 = 272,935.26/x
  3. Step 3: Cross multiply
    463,909.59x = 640,184.37 × 272,935.26
  4. Step 4: Simplify right side
    463,909.59x = 174,728,887,473.89
  5. Step 5: Solve for x
    x = 174,728,887,473.89/463,909.59
  6. Step 6: Final answer
    x = 376,644.27

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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.