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Finding the Fourth Proportional to 354,662.64, 489,430.26 and 193,514.22

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Solution

The fourth proportional to 354,662.64, 489,430.26 and 193,514.22 is: 267,047.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,662.64 : 489,430.26 = 193,514.22 : x
  2. Step 2: Convert to fraction form
    354,662.64/489,430.26 = 193,514.22/x
  3. Step 3: Cross multiply
    354,662.64x = 489,430.26 × 193,514.22
  4. Step 4: Simplify right side
    354,662.64x = 94,711,715,008.30
  5. Step 5: Solve for x
    x = 94,711,715,008.30/354,662.64
  6. Step 6: Final answer
    x = 267,047.34

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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.