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Finding the Fourth Proportional to 646,435.93, 969,329.49 and 376,651.26

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Solution

The fourth proportional to 646,435.93, 969,329.49 and 376,651.26 is: 564,787.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,435.93 : 969,329.49 = 376,651.26 : x
  2. Step 2: Convert to fraction form
    646,435.93/969,329.49 = 376,651.26/x
  3. Step 3: Cross multiply
    646,435.93x = 969,329.49 × 376,651.26
  4. Step 4: Simplify right side
    646,435.93x = 365,099,173,763.66
  5. Step 5: Solve for x
    x = 365,099,173,763.66/646,435.93
  6. Step 6: Final answer
    x = 564,787.87

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Double scale
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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.