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Finding the Fourth Proportional to 587,810.67, 880,978.39 and 317,928.03

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Solution

The fourth proportional to 587,810.67, 880,978.39 and 317,928.03 is: 476,493.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,810.67 : 880,978.39 = 317,928.03 : x
  2. Step 2: Convert to fraction form
    587,810.67/880,978.39 = 317,928.03/x
  3. Step 3: Cross multiply
    587,810.67x = 880,978.39 × 317,928.03
  4. Step 4: Simplify right side
    587,810.67x = 280,087,724,005.27
  5. Step 5: Solve for x
    x = 280,087,724,005.27/587,810.67
  6. Step 6: Final answer
    x = 476,493.09

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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.