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Finding the Fourth Proportional to 885,797.62, 1,328,052.74 and 353,158.90

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Solution

The fourth proportional to 885,797.62, 1,328,052.74 and 353,158.90 is: 529,481.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,797.62 : 1,328,052.74 = 353,158.90 : x
  2. Step 2: Convert to fraction form
    885,797.62/1,328,052.74 = 353,158.90/x
  3. Step 3: Cross multiply
    885,797.62x = 1,328,052.74 × 353,158.90
  4. Step 4: Simplify right side
    885,797.62x = 469,013,644,800.39
  5. Step 5: Solve for x
    x = 469,013,644,800.39/885,797.62
  6. Step 6: Final answer
    x = 529,481.72

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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.