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Finding the Fourth Proportional to 544,305.39, 816,829.61 and 189,315.87

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Solution

The fourth proportional to 544,305.39, 816,829.61 and 189,315.87 is: 284,103.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,305.39 : 816,829.61 = 189,315.87 : x
  2. Step 2: Convert to fraction form
    544,305.39/816,829.61 = 189,315.87/x
  3. Step 3: Cross multiply
    544,305.39x = 816,829.61 × 189,315.87
  4. Step 4: Simplify right side
    544,305.39x = 154,638,807,312.33
  5. Step 5: Solve for x
    x = 154,638,807,312.33/544,305.39
  6. Step 6: Final answer
    x = 284,103.02

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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.