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Finding the Fourth Proportional to 349,321.28, 482,063.28 and 190,345.28

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Solution

The fourth proportional to 349,321.28, 482,063.28 and 190,345.28 is: 262,676.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,321.28 : 482,063.28 = 190,345.28 : x
  2. Step 2: Convert to fraction form
    349,321.28/482,063.28 = 190,345.28/x
  3. Step 3: Cross multiply
    349,321.28x = 482,063.28 × 190,345.28
  4. Step 4: Simplify right side
    349,321.28x = 91,758,470,009.32
  5. Step 5: Solve for x
    x = 91,758,470,009.32/349,321.28
  6. Step 6: Final answer
    x = 262,676.44

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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.