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Finding the Fourth Proportional to 265,619.60, 398,429.40 and 230,627.60

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Solution

The fourth proportional to 265,619.60, 398,429.40 and 230,627.60 is: 345,941.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,619.60 : 398,429.40 = 230,627.60 : x
  2. Step 2: Convert to fraction form
    265,619.60/398,429.40 = 230,627.60/x
  3. Step 3: Cross multiply
    265,619.60x = 398,429.40 × 230,627.60
  4. Step 4: Simplify right side
    265,619.60x = 91,888,816,291.44
  5. Step 5: Solve for x
    x = 91,888,816,291.44/265,619.60
  6. Step 6: Final answer
    x = 345,941.40

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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.