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Finding the Fourth Proportional to 265,486.68, 397,294.20 and 165,693.60

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Solution

The fourth proportional to 265,486.68, 397,294.20 and 165,693.60 is: 247,956.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,486.68 : 397,294.20 = 165,693.60 : x
  2. Step 2: Convert to fraction form
    265,486.68/397,294.20 = 165,693.60/x
  3. Step 3: Cross multiply
    265,486.68x = 397,294.20 × 165,693.60
  4. Step 4: Simplify right side
    265,486.68x = 65,829,106,257.12
  5. Step 5: Solve for x
    x = 65,829,106,257.12/265,486.68
  6. Step 6: Final answer
    x = 247,956.34

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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.