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Finding the Fourth Proportional to 441,785.80, 662,678.70 and 231,396.40

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Solution

The fourth proportional to 441,785.80, 662,678.70 and 231,396.40 is: 347,094.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,785.80 : 662,678.70 = 231,396.40 : x
  2. Step 2: Convert to fraction form
    441,785.80/662,678.70 = 231,396.40/x
  3. Step 3: Cross multiply
    441,785.80x = 662,678.70 × 231,396.40
  4. Step 4: Simplify right side
    441,785.80x = 153,341,465,536.68
  5. Step 5: Solve for x
    x = 153,341,465,536.68/441,785.80
  6. Step 6: Final answer
    x = 347,094.60

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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.