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Finding the Fourth Proportional to 483,513.60, 667,209.76 and 279,577.60

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Solution

The fourth proportional to 483,513.60, 667,209.76 and 279,577.60 is: 385,794.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,513.60 : 667,209.76 = 279,577.60 : x
  2. Step 2: Convert to fraction form
    483,513.60/667,209.76 = 279,577.60/x
  3. Step 3: Cross multiply
    483,513.60x = 667,209.76 × 279,577.60
  4. Step 4: Simplify right side
    483,513.60x = 186,536,903,397.38
  5. Step 5: Solve for x
    x = 186,536,903,397.38/483,513.60
  6. Step 6: Final answer
    x = 385,794.53

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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.