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Finding the Fourth Proportional to 445,825.60, 668,738.40 and 293,610.40

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Solution

The fourth proportional to 445,825.60, 668,738.40 and 293,610.40 is: 440,415.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,825.60 : 668,738.40 = 293,610.40 : x
  2. Step 2: Convert to fraction form
    445,825.60/668,738.40 = 293,610.40/x
  3. Step 3: Cross multiply
    445,825.60x = 668,738.40 × 293,610.40
  4. Step 4: Simplify right side
    445,825.60x = 196,348,549,119.36
  5. Step 5: Solve for x
    x = 196,348,549,119.36/445,825.60
  6. Step 6: Final answer
    x = 440,415.60

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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.