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Finding the Fourth Proportional to 405,791.88, 560,004.66 and 222,041.48

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Solution

The fourth proportional to 405,791.88, 560,004.66 and 222,041.48 is: 306,423.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,791.88 : 560,004.66 = 222,041.48 : x
  2. Step 2: Convert to fraction form
    405,791.88/560,004.66 = 222,041.48/x
  3. Step 3: Cross multiply
    405,791.88x = 560,004.66 × 222,041.48
  4. Step 4: Simplify right side
    405,791.88x = 124,344,263,513.30
  5. Step 5: Solve for x
    x = 124,344,263,513.30/405,791.88
  6. Step 6: Final answer
    x = 306,423.74

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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.