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Finding the Fourth Proportional to 277,615.20, 416,617.20 and 178,017.60

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Solution

The fourth proportional to 277,615.20, 416,617.20 and 178,017.60 is: 267,151.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,615.20 : 416,617.20 = 178,017.60 : x
  2. Step 2: Convert to fraction form
    277,615.20/416,617.20 = 178,017.60/x
  3. Step 3: Cross multiply
    277,615.20x = 416,617.20 × 178,017.60
  4. Step 4: Simplify right side
    277,615.20x = 74,165,194,062.72
  5. Step 5: Solve for x
    x = 74,165,194,062.72/277,615.20
  6. Step 6: Final answer
    x = 267,151.06

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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.