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Finding the Fourth Proportional to 317,896.68, 438,675.30 and 174,662.76

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Solution

The fourth proportional to 317,896.68, 438,675.30 and 174,662.76 is: 241,022.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,896.68 : 438,675.30 = 174,662.76 : x
  2. Step 2: Convert to fraction form
    317,896.68/438,675.30 = 174,662.76/x
  3. Step 3: Cross multiply
    317,896.68x = 438,675.30 × 174,662.76
  4. Step 4: Simplify right side
    317,896.68x = 76,620,238,641.83
  5. Step 5: Solve for x
    x = 76,620,238,641.83/317,896.68
  6. Step 6: Final answer
    x = 241,022.46

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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.