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Finding the Fourth Proportional to 248,522.40, 372,783.60 and 221,565.60

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Solution

The fourth proportional to 248,522.40, 372,783.60 and 221,565.60 is: 332,348.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,522.40 : 372,783.60 = 221,565.60 : x
  2. Step 2: Convert to fraction form
    248,522.40/372,783.60 = 221,565.60/x
  3. Step 3: Cross multiply
    248,522.40x = 372,783.60 × 221,565.60
  4. Step 4: Simplify right side
    248,522.40x = 82,596,022,004.16
  5. Step 5: Solve for x
    x = 82,596,022,004.16/248,522.40
  6. Step 6: Final answer
    x = 332,348.40

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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.