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Finding the Fourth Proportional to 418,136.56, 577,009.96 and 236,844.84

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Solution

The fourth proportional to 418,136.56, 577,009.96 and 236,844.84 is: 326,835.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,136.56 : 577,009.96 = 236,844.84 : x
  2. Step 2: Convert to fraction form
    418,136.56/577,009.96 = 236,844.84/x
  3. Step 3: Cross multiply
    418,136.56x = 577,009.96 × 236,844.84
  4. Step 4: Simplify right side
    418,136.56x = 136,661,831,654.61
  5. Step 5: Solve for x
    x = 136,661,831,654.61/418,136.56
  6. Step 6: Final answer
    x = 326,835.40

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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.