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Finding the Fourth Proportional to 268,906.80, 403,360.20 and 174,903.60

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Solution

The fourth proportional to 268,906.80, 403,360.20 and 174,903.60 is: 262,355.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,906.80 : 403,360.20 = 174,903.60 : x
  2. Step 2: Convert to fraction form
    268,906.80/403,360.20 = 174,903.60/x
  3. Step 3: Cross multiply
    268,906.80x = 403,360.20 × 174,903.60
  4. Step 4: Simplify right side
    268,906.80x = 70,549,151,076.72
  5. Step 5: Solve for x
    x = 70,549,151,076.72/268,906.80
  6. Step 6: Final answer
    x = 262,355.40

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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.