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Finding the Fourth Proportional to 595,388.40, 821,620.44 and 353,671.44

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Solution

The fourth proportional to 595,388.40, 821,620.44 and 353,671.44 is: 488,057.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    595,388.40 : 821,620.44 = 353,671.44 : x
  2. Step 2: Convert to fraction form
    595,388.40/821,620.44 = 353,671.44/x
  3. Step 3: Cross multiply
    595,388.40x = 821,620.44 × 353,671.44
  4. Step 4: Simplify right side
    595,388.40x = 290,583,684,148.23
  5. Step 5: Solve for x
    x = 290,583,684,148.23/595,388.40
  6. Step 6: Final answer
    x = 488,057.35

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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.