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Finding the Fourth Proportional to 471,890.67, 707,928.53 and 187,528.22

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Solution

The fourth proportional to 471,890.67, 707,928.53 and 187,528.22 is: 281,329.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,890.67 : 707,928.53 = 187,528.22 : x
  2. Step 2: Convert to fraction form
    471,890.67/707,928.53 = 187,528.22/x
  3. Step 3: Cross multiply
    471,890.67x = 707,928.53 × 187,528.22
  4. Step 4: Simplify right side
    471,890.67x = 132,756,575,295.57
  5. Step 5: Solve for x
    x = 132,756,575,295.57/471,890.67
  6. Step 6: Final answer
    x = 281,329.10

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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.