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Finding the Fourth Proportional to 363,654.48, 501,980.04 and 212,800.08

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Solution

The fourth proportional to 363,654.48, 501,980.04 and 212,800.08 is: 293,744.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,654.48 : 501,980.04 = 212,800.08 : x
  2. Step 2: Convert to fraction form
    363,654.48/501,980.04 = 212,800.08/x
  3. Step 3: Cross multiply
    363,654.48x = 501,980.04 × 212,800.08
  4. Step 4: Simplify right side
    363,654.48x = 106,821,392,670.40
  5. Step 5: Solve for x
    x = 106,821,392,670.40/363,654.48
  6. Step 6: Final answer
    x = 293,744.20

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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.