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Finding the Fourth Proportional to 633,665.06, 874,457.61 and 347,196.02

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Solution

The fourth proportional to 633,665.06, 874,457.61 and 347,196.02 is: 479,130.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,665.06 : 874,457.61 = 347,196.02 : x
  2. Step 2: Convert to fraction form
    633,665.06/874,457.61 = 347,196.02/x
  3. Step 3: Cross multiply
    633,665.06x = 874,457.61 × 347,196.02
  4. Step 4: Simplify right side
    633,665.06x = 303,608,201,850.71
  5. Step 5: Solve for x
    x = 303,608,201,850.71/633,665.06
  6. Step 6: Final answer
    x = 479,130.41

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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.