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Finding the Fourth Proportional to 367,003.35, 550,505.03 and 340,431.30

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Solution

The fourth proportional to 367,003.35, 550,505.03 and 340,431.30 is: 510,646.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,003.35 : 550,505.03 = 340,431.30 : x
  2. Step 2: Convert to fraction form
    367,003.35/550,505.03 = 340,431.30/x
  3. Step 3: Cross multiply
    367,003.35x = 550,505.03 × 340,431.30
  4. Step 4: Simplify right side
    367,003.35x = 187,409,141,317.28
  5. Step 5: Solve for x
    x = 187,409,141,317.28/367,003.35
  6. Step 6: Final answer
    x = 510,646.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.