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Finding the Fourth Proportional to 674,671.80, 1,012,287.46 and 295,396.80

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Solution

The fourth proportional to 674,671.80, 1,012,287.46 and 295,396.80 is: 443,217.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,671.80 : 1,012,287.46 = 295,396.80 : x
  2. Step 2: Convert to fraction form
    674,671.80/1,012,287.46 = 295,396.80/x
  3. Step 3: Cross multiply
    674,671.80x = 1,012,287.46 × 295,396.80
  4. Step 4: Simplify right side
    674,671.80x = 299,026,476,364.13
  5. Step 5: Solve for x
    x = 299,026,476,364.13/674,671.80
  6. Step 6: Final answer
    x = 443,217.69

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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.