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Finding the Fourth Proportional to 682,466.40, 941,800.90 and 376,561.80

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Solution

The fourth proportional to 682,466.40, 941,800.90 and 376,561.80 is: 519,653.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,466.40 : 941,800.90 = 376,561.80 : x
  2. Step 2: Convert to fraction form
    682,466.40/941,800.90 = 376,561.80/x
  3. Step 3: Cross multiply
    682,466.40x = 941,800.90 × 376,561.80
  4. Step 4: Simplify right side
    682,466.40x = 354,646,242,145.62
  5. Step 5: Solve for x
    x = 354,646,242,145.62/682,466.40
  6. Step 6: Final answer
    x = 519,653.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.