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Finding the Fourth Proportional to 302,544.40, 453,816.60 and 196,790.80

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Solution

The fourth proportional to 302,544.40, 453,816.60 and 196,790.80 is: 295,186.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,544.40 : 453,816.60 = 196,790.80 : x
  2. Step 2: Convert to fraction form
    302,544.40/453,816.60 = 196,790.80/x
  3. Step 3: Cross multiply
    302,544.40x = 453,816.60 × 196,790.80
  4. Step 4: Simplify right side
    302,544.40x = 89,306,931,767.28
  5. Step 5: Solve for x
    x = 89,306,931,767.28/302,544.40
  6. Step 6: Final answer
    x = 295,186.20

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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.