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Finding the Fourth Proportional to 633,873.90, 874,740.96 and 347,393.30

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Solution

The fourth proportional to 633,873.90, 874,740.96 and 347,393.30 is: 479,400.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,873.90 : 874,740.96 = 347,393.30 : x
  2. Step 2: Convert to fraction form
    633,873.90/874,740.96 = 347,393.30/x
  3. Step 3: Cross multiply
    633,873.90x = 874,740.96 × 347,393.30
  4. Step 4: Simplify right side
    633,873.90x = 303,879,148,739.57
  5. Step 5: Solve for x
    x = 303,879,148,739.57/633,873.90
  6. Step 6: Final answer
    x = 479,400.00

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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.