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Finding the Fourth Proportional to 331,584.40, 497,323.80 and 109,968.40

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Solution

The fourth proportional to 331,584.40, 497,323.80 and 109,968.40 is: 164,935.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,584.40 : 497,323.80 = 109,968.40 : x
  2. Step 2: Convert to fraction form
    331,584.40/497,323.80 = 109,968.40/x
  3. Step 3: Cross multiply
    331,584.40x = 497,323.80 × 109,968.40
  4. Step 4: Simplify right side
    331,584.40x = 54,689,902,567.92
  5. Step 5: Solve for x
    x = 54,689,902,567.92/331,584.40
  6. Step 6: Final answer
    x = 164,935.09

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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.