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Finding the Fourth Proportional to 446,172.72, 615,720.60 and 255,194.16

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Solution

The fourth proportional to 446,172.72, 615,720.60 and 255,194.16 is: 352,169.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,172.72 : 615,720.60 = 255,194.16 : x
  2. Step 2: Convert to fraction form
    446,172.72/615,720.60 = 255,194.16/x
  3. Step 3: Cross multiply
    446,172.72x = 615,720.60 × 255,194.16
  4. Step 4: Simplify right side
    446,172.72x = 157,128,301,311.70
  5. Step 5: Solve for x
    x = 157,128,301,311.70/446,172.72
  6. Step 6: Final answer
    x = 352,169.23

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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.