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Finding the Fourth Proportional to 633,670.56, 874,465.20 and 347,201.52

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Solution

The fourth proportional to 633,670.56, 874,465.20 and 347,201.52 is: 479,138.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,670.56 : 874,465.20 = 347,201.52 : x
  2. Step 2: Convert to fraction form
    633,670.56/874,465.20 = 347,201.52/x
  3. Step 3: Cross multiply
    633,670.56x = 874,465.20 × 347,201.52
  4. Step 4: Simplify right side
    633,670.56x = 303,615,646,627.10
  5. Step 5: Solve for x
    x = 303,615,646,627.10/633,670.56
  6. Step 6: Final answer
    x = 479,138.00

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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.