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Finding the Fourth Proportional to 417,028.36, 575,485.12 and 247,161.64

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Solution

The fourth proportional to 417,028.36, 575,485.12 and 247,161.64 is: 341,074.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,028.36 : 575,485.12 = 247,161.64 : x
  2. Step 2: Convert to fraction form
    417,028.36/575,485.12 = 247,161.64/x
  3. Step 3: Cross multiply
    417,028.36x = 575,485.12 × 247,161.64
  4. Step 4: Simplify right side
    417,028.36x = 142,237,846,054.80
  5. Step 5: Solve for x
    x = 142,237,846,054.80/417,028.36
  6. Step 6: Final answer
    x = 341,074.76

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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.