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Finding the Fourth Proportional to 481,636.40, 722,454.60 and 452,111.90

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Solution

The fourth proportional to 481,636.40, 722,454.60 and 452,111.90 is: 678,167.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,636.40 : 722,454.60 = 452,111.90 : x
  2. Step 2: Convert to fraction form
    481,636.40/722,454.60 = 452,111.90/x
  3. Step 3: Cross multiply
    481,636.40x = 722,454.60 × 452,111.90
  4. Step 4: Simplify right side
    481,636.40x = 326,630,321,869.74
  5. Step 5: Solve for x
    x = 326,630,321,869.74/481,636.40
  6. Step 6: Final answer
    x = 678,167.85

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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.