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Finding the Fourth Proportional to 462,620.40, 692,548.20 and 275,535.60

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Solution

The fourth proportional to 462,620.40, 692,548.20 and 275,535.60 is: 412,480.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,620.40 : 692,548.20 = 275,535.60 : x
  2. Step 2: Convert to fraction form
    462,620.40/692,548.20 = 275,535.60/x
  3. Step 3: Cross multiply
    462,620.40x = 692,548.20 × 275,535.60
  4. Step 4: Simplify right side
    462,620.40x = 190,821,683,815.92
  5. Step 5: Solve for x
    x = 190,821,683,815.92/462,620.40
  6. Step 6: Final answer
    x = 412,480.05

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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.