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Finding the Fourth Proportional to 331,585.40, 497,325.30 and 109,969.40

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Solution

The fourth proportional to 331,585.40, 497,325.30 and 109,969.40 is: 164,936.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,585.40 : 497,325.30 = 109,969.40 : x
  2. Step 2: Convert to fraction form
    331,585.40/497,325.30 = 109,969.40/x
  3. Step 3: Cross multiply
    331,585.40x = 497,325.30 × 109,969.40
  4. Step 4: Simplify right side
    331,585.40x = 54,690,564,845.82
  5. Step 5: Solve for x
    x = 54,690,564,845.82/331,585.40
  6. Step 6: Final answer
    x = 164,936.59

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1.5x scale

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.