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Finding the Fourth Proportional to 619,979.82, 929,103.60 and 335,056.11

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Solution

The fourth proportional to 619,979.82, 929,103.60 and 335,056.11 is: 502,116.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,979.82 : 929,103.60 = 335,056.11 : x
  2. Step 2: Convert to fraction form
    619,979.82/929,103.60 = 335,056.11/x
  3. Step 3: Cross multiply
    619,979.82x = 929,103.60 × 335,056.11
  4. Step 4: Simplify right side
    619,979.82x = 311,301,838,003.00
  5. Step 5: Solve for x
    x = 311,301,838,003.00/619,979.82
  6. Step 6: Final answer
    x = 502,116.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.