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Finding the Fourth Proportional to 873,662.27, 1,205,642.43 and 481,187.69

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Solution

The fourth proportional to 873,662.27, 1,205,642.43 and 481,187.69 is: 664,032.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,662.27 : 1,205,642.43 = 481,187.69 : x
  2. Step 2: Convert to fraction form
    873,662.27/1,205,642.43 = 481,187.69/x
  3. Step 3: Cross multiply
    873,662.27x = 1,205,642.43 × 481,187.69
  4. Step 4: Simplify right side
    873,662.27x = 580,140,294,350.63
  5. Step 5: Solve for x
    x = 580,140,294,350.63/873,662.27
  6. Step 6: Final answer
    x = 664,032.67

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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.