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Finding the Fourth Proportional to 317,791.56, 438,555.96 and 174,554.96

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Solution

The fourth proportional to 317,791.56, 438,555.96 and 174,554.96 is: 240,887.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,791.56 : 438,555.96 = 174,554.96 : x
  2. Step 2: Convert to fraction form
    317,791.56/438,555.96 = 174,554.96/x
  3. Step 3: Cross multiply
    317,791.56x = 438,555.96 × 174,554.96
  4. Step 4: Simplify right side
    317,791.56x = 76,552,118,055.56
  5. Step 5: Solve for x
    x = 76,552,118,055.56/317,791.56
  6. Step 6: Final answer
    x = 240,887.83

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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.