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Finding the Fourth Proportional to 633,873.33, 874,740.18 and 347,392.74

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Solution

The fourth proportional to 633,873.33, 874,740.18 and 347,392.74 is: 479,399.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,873.33 : 874,740.18 = 347,392.74 : x
  2. Step 2: Convert to fraction form
    633,873.33/874,740.18 = 347,392.74/x
  3. Step 3: Cross multiply
    633,873.33x = 874,740.18 × 347,392.74
  4. Step 4: Simplify right side
    633,873.33x = 303,878,387,918.29
  5. Step 5: Solve for x
    x = 303,878,387,918.29/633,873.33
  6. Step 6: Final answer
    x = 479,399.23

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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.