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Finding the Fourth Proportional to 339,812.24, 469,012.24 and 215,552.84

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Solution

The fourth proportional to 339,812.24, 469,012.24 and 215,552.84 is: 297,508.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,812.24 : 469,012.24 = 215,552.84 : x
  2. Step 2: Convert to fraction form
    339,812.24/469,012.24 = 215,552.84/x
  3. Step 3: Cross multiply
    339,812.24x = 469,012.24 × 215,552.84
  4. Step 4: Simplify right side
    339,812.24x = 101,096,920,326.76
  5. Step 5: Solve for x
    x = 101,096,920,326.76/339,812.24
  6. Step 6: Final answer
    x = 297,508.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.