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Finding the Fourth Proportional to 471,679.20, 707,013.12 and 234,511.20

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Solution

The fourth proportional to 471,679.20, 707,013.12 and 234,511.20 is: 351,515.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,679.20 : 707,013.12 = 234,511.20 : x
  2. Step 2: Convert to fraction form
    471,679.20/707,013.12 = 234,511.20/x
  3. Step 3: Cross multiply
    471,679.20x = 707,013.12 × 234,511.20
  4. Step 4: Simplify right side
    471,679.20x = 165,802,495,186.94
  5. Step 5: Solve for x
    x = 165,802,495,186.94/471,679.20
  6. Step 6: Final answer
    x = 351,515.38

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1.5x scale

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.