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Finding the Fourth Proportional to 461,992.40, 692,470.20 and 262,408.40

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Solution

The fourth proportional to 461,992.40, 692,470.20 and 262,408.40 is: 393,318.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,992.40 : 692,470.20 = 262,408.40 : x
  2. Step 2: Convert to fraction form
    461,992.40/692,470.20 = 262,408.40/x
  3. Step 3: Cross multiply
    461,992.40x = 692,470.20 × 262,408.40
  4. Step 4: Simplify right side
    461,992.40x = 181,709,997,229.68
  5. Step 5: Solve for x
    x = 181,709,997,229.68/461,992.40
  6. Step 6: Final answer
    x = 393,318.15

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1.5x scale

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.