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Finding the Fourth Proportional to 674,238.80, 1,010,677.80 and 336,760.40

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Solution

The fourth proportional to 674,238.80, 1,010,677.80 and 336,760.40 is: 504,800.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,238.80 : 1,010,677.80 = 336,760.40 : x
  2. Step 2: Convert to fraction form
    674,238.80/1,010,677.80 = 336,760.40/x
  3. Step 3: Cross multiply
    674,238.80x = 1,010,677.80 × 336,760.40
  4. Step 4: Simplify right side
    674,238.80x = 340,356,260,199.12
  5. Step 5: Solve for x
    x = 340,356,260,199.12/674,238.80
  6. Step 6: Final answer
    x = 504,800.76

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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.