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Finding the Fourth Proportional to 326,729.40, 490,094.10 and 246,895.80

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Solution

The fourth proportional to 326,729.40, 490,094.10 and 246,895.80 is: 370,343.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,729.40 : 490,094.10 = 246,895.80 : x
  2. Step 2: Convert to fraction form
    326,729.40/490,094.10 = 246,895.80/x
  3. Step 3: Cross multiply
    326,729.40x = 490,094.10 × 246,895.80
  4. Step 4: Simplify right side
    326,729.40x = 121,002,174,894.78
  5. Step 5: Solve for x
    x = 121,002,174,894.78/326,729.40
  6. Step 6: Final answer
    x = 370,343.70

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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.