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Finding the Fourth Proportional to 330,889.61, 495,081.90 and 196,026.07

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Solution

The fourth proportional to 330,889.61, 495,081.90 and 196,026.07 is: 293,297.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,889.61 : 495,081.90 = 196,026.07 : x
  2. Step 2: Convert to fraction form
    330,889.61/495,081.90 = 196,026.07/x
  3. Step 3: Cross multiply
    330,889.61x = 495,081.90 × 196,026.07
  4. Step 4: Simplify right side
    330,889.61x = 97,048,960,732.26
  5. Step 5: Solve for x
    x = 97,048,960,732.26/330,889.61
  6. Step 6: Final answer
    x = 293,297.10

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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.