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Finding the Fourth Proportional to 262,464.72, 393,759.54 and 84,971.76

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Solution

The fourth proportional to 262,464.72, 393,759.54 and 84,971.76 is: 127,477.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,464.72 : 393,759.54 = 84,971.76 : x
  2. Step 2: Convert to fraction form
    262,464.72/393,759.54 = 84,971.76/x
  3. Step 3: Cross multiply
    262,464.72x = 393,759.54 × 84,971.76
  4. Step 4: Simplify right side
    262,464.72x = 33,458,441,130.59
  5. Step 5: Solve for x
    x = 33,458,441,130.59/262,464.72
  6. Step 6: Final answer
    x = 127,477.86

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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.