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Finding the Fourth Proportional to 675,078.54, 1,006,662.54 and 669,002.94

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Solution

The fourth proportional to 675,078.54, 1,006,662.54 and 669,002.94 is: 997,602.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,078.54 : 1,006,662.54 = 669,002.94 : x
  2. Step 2: Convert to fraction form
    675,078.54/1,006,662.54 = 669,002.94/x
  3. Step 3: Cross multiply
    675,078.54x = 1,006,662.54 × 669,002.94
  4. Step 4: Simplify right side
    675,078.54x = 673,460,198,847.87
  5. Step 5: Solve for x
    x = 673,460,198,847.87/675,078.54
  6. Step 6: Final answer
    x = 997,602.74

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.