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Finding the Fourth Proportional to 365,663.82, 504,412.98 and 212,684.79

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Solution

The fourth proportional to 365,663.82, 504,412.98 and 212,684.79 is: 293,386.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,663.82 : 504,412.98 = 212,684.79 : x
  2. Step 2: Convert to fraction form
    365,663.82/504,412.98 = 212,684.79/x
  3. Step 3: Cross multiply
    365,663.82x = 504,412.98 × 212,684.79
  4. Step 4: Simplify right side
    365,663.82x = 107,280,968,724.57
  5. Step 5: Solve for x
    x = 107,280,968,724.57/365,663.82
  6. Step 6: Final answer
    x = 293,386.88

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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.