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Finding the Fourth Proportional to 314,791.58, 434,399.74 and 171,548.54

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Solution

The fourth proportional to 314,791.58, 434,399.74 and 171,548.54 is: 236,730.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,791.58 : 434,399.74 = 171,548.54 : x
  2. Step 2: Convert to fraction form
    314,791.58/434,399.74 = 171,548.54/x
  3. Step 3: Cross multiply
    314,791.58x = 434,399.74 × 171,548.54
  4. Step 4: Simplify right side
    314,791.58x = 74,520,641,173.38
  5. Step 5: Solve for x
    x = 74,520,641,173.38/314,791.58
  6. Step 6: Final answer
    x = 236,730.10

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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.