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Finding the Fourth Proportional to 483,151.84, 666,768.92 and 279,196

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Solution

The fourth proportional to 483,151.84, 666,768.92 and 279,196 is: 385,301.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,151.84 : 666,768.92 = 279,196 : x
  2. Step 2: Convert to fraction form
    483,151.84/666,768.92 = 279,196/x
  3. Step 3: Cross multiply
    483,151.84x = 666,768.92 × 279,196
  4. Step 4: Simplify right side
    483,151.84x = 186,159,215,388.32
  5. Step 5: Solve for x
    x = 186,159,215,388.32/483,151.84
  6. Step 6: Final answer
    x = 385,301.68

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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.