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Finding the Fourth Proportional to 483,636.02, 667,364.67 and 279,656.15

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Solution

The fourth proportional to 483,636.02, 667,364.67 and 279,656.15 is: 385,894.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,636.02 : 667,364.67 = 279,656.15 : x
  2. Step 2: Convert to fraction form
    483,636.02/667,364.67 = 279,656.15/x
  3. Step 3: Cross multiply
    483,636.02x = 667,364.67 × 279,656.15
  4. Step 4: Simplify right side
    483,636.02x = 186,632,630,921.40
  5. Step 5: Solve for x
    x = 186,632,630,921.40/483,636.02
  6. Step 6: Final answer
    x = 385,894.82

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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.