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Finding the Fourth Proportional to 438,193.25, 604,706.69 and 236,989.25

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Solution

The fourth proportional to 438,193.25, 604,706.69 and 236,989.25 is: 327,045.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,193.25 : 604,706.69 = 236,989.25 : x
  2. Step 2: Convert to fraction form
    438,193.25/604,706.69 = 236,989.25/x
  3. Step 3: Cross multiply
    438,193.25x = 604,706.69 × 236,989.25
  4. Step 4: Simplify right side
    438,193.25x = 143,308,983,748.14
  5. Step 5: Solve for x
    x = 143,308,983,748.14/438,193.25
  6. Step 6: Final answer
    x = 327,045.17

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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.