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Finding the Fourth Proportional to 461,712.14, 635,741.55 and 393,576.38

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Solution

The fourth proportional to 461,712.14, 635,741.55 and 393,576.38 is: 541,923.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,712.14 : 635,741.55 = 393,576.38 : x
  2. Step 2: Convert to fraction form
    461,712.14/635,741.55 = 393,576.38/x
  3. Step 3: Cross multiply
    461,712.14x = 635,741.55 × 393,576.38
  4. Step 4: Simplify right side
    461,712.14x = 250,212,857,864.59
  5. Step 5: Solve for x
    x = 250,212,857,864.59/461,712.14
  6. Step 6: Final answer
    x = 541,923.93

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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.