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Finding the Fourth Proportional to 417,015.16, 575,481.94 and 226,028.36

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Solution

The fourth proportional to 417,015.16, 575,481.94 and 226,028.36 is: 311,919.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,015.16 : 575,481.94 = 226,028.36 : x
  2. Step 2: Convert to fraction form
    417,015.16/575,481.94 = 226,028.36/x
  3. Step 3: Cross multiply
    417,015.16x = 575,481.94 × 226,028.36
  4. Step 4: Simplify right side
    417,015.16x = 130,075,239,107.82
  5. Step 5: Solve for x
    x = 130,075,239,107.82/417,015.16
  6. Step 6: Final answer
    x = 311,919.69

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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.