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Finding the Fourth Proportional to 418,185.36, 577,124.36 and 236,898.78

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Solution

The fourth proportional to 418,185.36, 577,124.36 and 236,898.78 is: 326,936.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,185.36 : 577,124.36 = 236,898.78 : x
  2. Step 2: Convert to fraction form
    418,185.36/577,124.36 = 236,898.78/x
  3. Step 3: Cross multiply
    418,185.36x = 577,124.36 × 236,898.78
  4. Step 4: Simplify right side
    418,185.36x = 136,720,055,607.79
  5. Step 5: Solve for x
    x = 136,720,055,607.79/418,185.36
  6. Step 6: Final answer
    x = 326,936.49

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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.