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Finding the Fourth Proportional to 633,563.32, 874,317.36 and 378,914.50

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Solution

The fourth proportional to 633,563.32, 874,317.36 and 378,914.50 is: 522,902.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,563.32 : 874,317.36 = 378,914.50 : x
  2. Step 2: Convert to fraction form
    633,563.32/874,317.36 = 378,914.50/x
  3. Step 3: Cross multiply
    633,563.32x = 874,317.36 × 378,914.50
  4. Step 4: Simplify right side
    633,563.32x = 331,291,525,305.72
  5. Step 5: Solve for x
    x = 331,291,525,305.72/633,563.32
  6. Step 6: Final answer
    x = 522,902.00

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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.