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Finding the Fourth Proportional to 673,847.16, 929,902.86 and 372,043.32

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Solution

The fourth proportional to 673,847.16, 929,902.86 and 372,043.32 is: 513,416.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,847.16 : 929,902.86 = 372,043.32 : x
  2. Step 2: Convert to fraction form
    673,847.16/929,902.86 = 372,043.32/x
  3. Step 3: Cross multiply
    673,847.16x = 929,902.86 × 372,043.32
  4. Step 4: Simplify right side
    673,847.16x = 345,964,147,311.90
  5. Step 5: Solve for x
    x = 345,964,147,311.90/673,847.16
  6. Step 6: Final answer
    x = 513,416.35

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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.