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Finding the Fourth Proportional to 349,362, 482,119.56 and 190,386

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Solution

The fourth proportional to 349,362, 482,119.56 and 190,386 is: 262,732.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,362 : 482,119.56 = 190,386 : x
  2. Step 2: Convert to fraction form
    349,362/482,119.56 = 190,386/x
  3. Step 3: Cross multiply
    349,362x = 482,119.56 × 190,386
  4. Step 4: Simplify right side
    349,362x = 91,788,814,550.16
  5. Step 5: Solve for x
    x = 91,788,814,550.16/349,362
  6. Step 6: Final answer
    x = 262,732.68

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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.