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Finding the Fourth Proportional to 358,914.60, 495,215.48 and 236,394

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Solution

The fourth proportional to 358,914.60, 495,215.48 and 236,394 is: 326,166.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,914.60 : 495,215.48 = 236,394 : x
  2. Step 2: Convert to fraction form
    358,914.60/495,215.48 = 236,394/x
  3. Step 3: Cross multiply
    358,914.60x = 495,215.48 × 236,394
  4. Step 4: Simplify right side
    358,914.60x = 117,065,966,997.15
  5. Step 5: Solve for x
    x = 117,065,966,997.15/358,914.60
  6. Step 6: Final answer
    x = 326,166.63

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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.