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Finding the Fourth Proportional to 668,887.02, 1,003,204.35 and 189,111

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Solution

The fourth proportional to 668,887.02, 1,003,204.35 and 189,111 is: 283,630.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,887.02 : 1,003,204.35 = 189,111 : x
  2. Step 2: Convert to fraction form
    668,887.02/1,003,204.35 = 189,111/x
  3. Step 3: Cross multiply
    668,887.02x = 1,003,204.35 × 189,111
  4. Step 4: Simplify right side
    668,887.02x = 189,716,977,832.85
  5. Step 5: Solve for x
    x = 189,716,977,832.85/668,887.02
  6. Step 6: Final answer
    x = 283,630.83

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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.