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Finding the Fourth Proportional to 541,138.64, 747,071.64 and 326,333.12

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Solution

The fourth proportional to 541,138.64, 747,071.64 and 326,333.12 is: 450,520.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,138.64 : 747,071.64 = 326,333.12 : x
  2. Step 2: Convert to fraction form
    541,138.64/747,071.64 = 326,333.12/x
  3. Step 3: Cross multiply
    541,138.64x = 747,071.64 × 326,333.12
  4. Step 4: Simplify right side
    541,138.64x = 243,794,219,144.72
  5. Step 5: Solve for x
    x = 243,794,219,144.72/541,138.64
  6. Step 6: Final answer
    x = 450,520.81

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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.