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Finding the Fourth Proportional to 297,043.60, 445,565.40 and 276,048.40

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Solution

The fourth proportional to 297,043.60, 445,565.40 and 276,048.40 is: 414,072.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,043.60 : 445,565.40 = 276,048.40 : x
  2. Step 2: Convert to fraction form
    297,043.60/445,565.40 = 276,048.40/x
  3. Step 3: Cross multiply
    297,043.60x = 445,565.40 × 276,048.40
  4. Step 4: Simplify right side
    297,043.60x = 122,997,615,765.36
  5. Step 5: Solve for x
    x = 122,997,615,765.36/297,043.60
  6. Step 6: Final answer
    x = 414,072.60

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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.