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Finding the Fourth Proportional to 461,912.62, 638,051.42 and 371,608.69

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Solution

The fourth proportional to 461,912.62, 638,051.42 and 371,608.69 is: 513,312.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,912.62 : 638,051.42 = 371,608.69 : x
  2. Step 2: Convert to fraction form
    461,912.62/638,051.42 = 371,608.69/x
  3. Step 3: Cross multiply
    461,912.62x = 638,051.42 × 371,608.69
  4. Step 4: Simplify right side
    461,912.62x = 237,105,452,338.84
  5. Step 5: Solve for x
    x = 237,105,452,338.84/461,912.62
  6. Step 6: Final answer
    x = 513,312.35

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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.