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Finding the Fourth Proportional to 461,711.89, 635,741.26 and 393,576.13

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Solution

The fourth proportional to 461,711.89, 635,741.26 and 393,576.13 is: 541,923.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,711.89 : 635,741.26 = 393,576.13 : x
  2. Step 2: Convert to fraction form
    461,711.89/635,741.26 = 393,576.13/x
  3. Step 3: Cross multiply
    461,711.89x = 635,741.26 × 393,576.13
  4. Step 4: Simplify right side
    461,711.89x = 250,212,584,792.12
  5. Step 5: Solve for x
    x = 250,212,584,792.12/461,711.89
  6. Step 6: Final answer
    x = 541,923.63

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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.