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Finding the Fourth Proportional to 484,690.95, 668,775.78 and 293,593.32

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Solution

The fourth proportional to 484,690.95, 668,775.78 and 293,593.32 is: 405,099.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,690.95 : 668,775.78 = 293,593.32 : x
  2. Step 2: Convert to fraction form
    484,690.95/668,775.78 = 293,593.32/x
  3. Step 3: Cross multiply
    484,690.95x = 668,775.78 × 293,593.32
  4. Step 4: Simplify right side
    484,690.95x = 196,348,101,585.79
  5. Step 5: Solve for x
    x = 196,348,101,585.79/484,690.95
  6. Step 6: Final answer
    x = 405,099.58

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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.