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Finding the Fourth Proportional to 483,331.59, 666,847.42 and 279,308.18

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Solution

The fourth proportional to 483,331.59, 666,847.42 and 279,308.18 is: 385,358.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,331.59 : 666,847.42 = 279,308.18 : x
  2. Step 2: Convert to fraction form
    483,331.59/666,847.42 = 279,308.18/x
  3. Step 3: Cross multiply
    483,331.59x = 666,847.42 × 279,308.18
  4. Step 4: Simplify right side
    483,331.59x = 186,255,940,186.74
  5. Step 5: Solve for x
    x = 186,255,940,186.74/483,331.59
  6. Step 6: Final answer
    x = 385,358.51

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1.5x scale

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.