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Finding the Fourth Proportional to 438,187.11, 604,698.62 and 236,983.11

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Solution

The fourth proportional to 438,187.11, 604,698.62 and 236,983.11 is: 327,036.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,187.11 : 604,698.62 = 236,983.11 : x
  2. Step 2: Convert to fraction form
    438,187.11/604,698.62 = 236,983.11/x
  3. Step 3: Cross multiply
    438,187.11x = 604,698.62 × 236,983.11
  4. Step 4: Simplify right side
    438,187.11x = 143,303,358,395.39
  5. Step 5: Solve for x
    x = 143,303,358,395.39/438,187.11
  6. Step 6: Final answer
    x = 327,036.91

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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.