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Finding the Fourth Proportional to 703,515, 970,483.44 and 431,643.54

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Solution

The fourth proportional to 703,515, 970,483.44 and 431,643.54 is: 595,442.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,515 : 970,483.44 = 431,643.54 : x
  2. Step 2: Convert to fraction form
    703,515/970,483.44 = 431,643.54/x
  3. Step 3: Cross multiply
    703,515x = 970,483.44 × 431,643.54
  4. Step 4: Simplify right side
    703,515x = 418,902,907,552.98
  5. Step 5: Solve for x
    x = 418,902,907,552.98/703,515
  6. Step 6: Final answer
    x = 595,442.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.