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Finding the Fourth Proportional to 603,442.60, 905,674.20 and 248,711.20

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Solution

The fourth proportional to 603,442.60, 905,674.20 and 248,711.20 is: 373,277.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,442.60 : 905,674.20 = 248,711.20 : x
  2. Step 2: Convert to fraction form
    603,442.60/905,674.20 = 248,711.20/x
  3. Step 3: Cross multiply
    603,442.60x = 905,674.20 × 248,711.20
  4. Step 4: Simplify right side
    603,442.60x = 225,251,317,091.04
  5. Step 5: Solve for x
    x = 225,251,317,091.04/603,442.60
  6. Step 6: Final answer
    x = 373,277.12

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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.