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Finding the Fourth Proportional to 483,615.60, 725,423.40 and 262,431.60

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Solution

The fourth proportional to 483,615.60, 725,423.40 and 262,431.60 is: 393,647.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,615.60 : 725,423.40 = 262,431.60 : x
  2. Step 2: Convert to fraction form
    483,615.60/725,423.40 = 262,431.60/x
  3. Step 3: Cross multiply
    483,615.60x = 725,423.40 × 262,431.60
  4. Step 4: Simplify right side
    483,615.60x = 190,374,023,539.44
  5. Step 5: Solve for x
    x = 190,374,023,539.44/483,615.60
  6. Step 6: Final answer
    x = 393,647.40

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Similar ratio
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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.