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Finding the Fourth Proportional to 346,884.80, 520,416.72 and 106,993.28

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Solution

The fourth proportional to 346,884.80, 520,416.72 and 106,993.28 is: 160,517.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,884.80 : 520,416.72 = 106,993.28 : x
  2. Step 2: Convert to fraction form
    346,884.80/520,416.72 = 106,993.28/x
  3. Step 3: Cross multiply
    346,884.80x = 520,416.72 × 106,993.28
  4. Step 4: Simplify right side
    346,884.80x = 55,681,089,237.56
  5. Step 5: Solve for x
    x = 55,681,089,237.56/346,884.80
  6. Step 6: Final answer
    x = 160,517.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.