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Finding the Fourth Proportional to 349,299.60, 482,085.69 and 213,412.11

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Solution

The fourth proportional to 349,299.60, 482,085.69 and 213,412.11 is: 294,540.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,299.60 : 482,085.69 = 213,412.11 : x
  2. Step 2: Convert to fraction form
    349,299.60/482,085.69 = 213,412.11/x
  3. Step 3: Cross multiply
    349,299.60x = 482,085.69 × 213,412.11
  4. Step 4: Simplify right side
    349,299.60x = 102,882,924,303.71
  5. Step 5: Solve for x
    x = 102,882,924,303.71/349,299.60
  6. Step 6: Final answer
    x = 294,540.63

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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.