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Finding the Fourth Proportional to 291,748.40, 437,622.60 and 248,202.80

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Solution

The fourth proportional to 291,748.40, 437,622.60 and 248,202.80 is: 372,304.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,748.40 : 437,622.60 = 248,202.80 : x
  2. Step 2: Convert to fraction form
    291,748.40/437,622.60 = 248,202.80/x
  3. Step 3: Cross multiply
    291,748.40x = 437,622.60 × 248,202.80
  4. Step 4: Simplify right side
    291,748.40x = 108,619,154,663.28
  5. Step 5: Solve for x
    x = 108,619,154,663.28/291,748.40
  6. Step 6: Final answer
    x = 372,304.20

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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.