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Finding the Fourth Proportional to 305,455.34, 458,242.72 and 92,240.60

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Solution

The fourth proportional to 305,455.34, 458,242.72 and 92,240.60 is: 138,378.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,455.34 : 458,242.72 = 92,240.60 : x
  2. Step 2: Convert to fraction form
    305,455.34/458,242.72 = 92,240.60/x
  3. Step 3: Cross multiply
    305,455.34x = 458,242.72 × 92,240.60
  4. Step 4: Simplify right side
    305,455.34x = 42,268,583,438.43
  5. Step 5: Solve for x
    x = 42,268,583,438.43/305,455.34
  6. Step 6: Final answer
    x = 138,378.93

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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.