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Finding the Fourth Proportional to 595,508.90, 821,709.77 and 353,785.25

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Solution

The fourth proportional to 595,508.90, 821,709.77 and 353,785.25 is: 488,168.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    595,508.90 : 821,709.77 = 353,785.25 : x
  2. Step 2: Convert to fraction form
    595,508.90/821,709.77 = 353,785.25/x
  3. Step 3: Cross multiply
    595,508.90x = 821,709.77 × 353,785.25
  4. Step 4: Simplify right side
    595,508.90x = 290,708,796,692.24
  5. Step 5: Solve for x
    x = 290,708,796,692.24/595,508.90
  6. Step 6: Final answer
    x = 488,168.69

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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.