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Finding the Fourth Proportional to 317,451.36, 476,171.81 and 127,907.11

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Solution

The fourth proportional to 317,451.36, 476,171.81 and 127,907.11 is: 191,858.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,451.36 : 476,171.81 = 127,907.11 : x
  2. Step 2: Convert to fraction form
    317,451.36/476,171.81 = 127,907.11/x
  3. Step 3: Cross multiply
    317,451.36x = 476,171.81 × 127,907.11
  4. Step 4: Simplify right side
    317,451.36x = 60,905,760,400.34
  5. Step 5: Solve for x
    x = 60,905,760,400.34/317,451.36
  6. Step 6: Final answer
    x = 191,858.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.