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Finding the Fourth Proportional to 633,509.62, 874,243.44 and 347,039.89

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Solution

The fourth proportional to 633,509.62, 874,243.44 and 347,039.89 is: 478,915.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,509.62 : 874,243.44 = 347,039.89 : x
  2. Step 2: Convert to fraction form
    633,509.62/874,243.44 = 347,039.89/x
  3. Step 3: Cross multiply
    633,509.62x = 874,243.44 × 347,039.89
  4. Step 4: Simplify right side
    633,509.62x = 303,397,345,065.21
  5. Step 5: Solve for x
    x = 303,397,345,065.21/633,509.62
  6. Step 6: Final answer
    x = 478,915.14

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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.