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Finding the Fourth Proportional to 476,161.56, 657,112.86 and 261,289.08

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Solution

The fourth proportional to 476,161.56, 657,112.86 and 261,289.08 is: 360,584.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,161.56 : 657,112.86 = 261,289.08 : x
  2. Step 2: Convert to fraction form
    476,161.56/657,112.86 = 261,289.08/x
  3. Step 3: Cross multiply
    476,161.56x = 657,112.86 × 261,289.08
  4. Step 4: Simplify right side
    476,161.56x = 171,696,414,645.57
  5. Step 5: Solve for x
    x = 171,696,414,645.57/476,161.56
  6. Step 6: Final answer
    x = 360,584.37

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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.