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Finding the Fourth Proportional to 265,145.60, 397,718.40 and 236,115.20

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Solution

The fourth proportional to 265,145.60, 397,718.40 and 236,115.20 is: 354,172.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,145.60 : 397,718.40 = 236,115.20 : x
  2. Step 2: Convert to fraction form
    265,145.60/397,718.40 = 236,115.20/x
  3. Step 3: Cross multiply
    265,145.60x = 397,718.40 × 236,115.20
  4. Step 4: Simplify right side
    265,145.60x = 93,907,359,559.68
  5. Step 5: Solve for x
    x = 93,907,359,559.68/265,145.60
  6. Step 6: Final answer
    x = 354,172.80

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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.