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Finding the Fourth Proportional to 326,741.64, 489,676.40 and 174,626.88

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Solution

The fourth proportional to 326,741.64, 489,676.40 and 174,626.88 is: 261,707.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,741.64 : 489,676.40 = 174,626.88 : x
  2. Step 2: Convert to fraction form
    326,741.64/489,676.40 = 174,626.88/x
  3. Step 3: Cross multiply
    326,741.64x = 489,676.40 × 174,626.88
  4. Step 4: Simplify right side
    326,741.64x = 85,510,661,941.63
  5. Step 5: Solve for x
    x = 85,510,661,941.63/326,741.64
  6. Step 6: Final answer
    x = 261,707.27

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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.