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Finding the Fourth Proportional to 5,159,528.34, 7,739,467.20 and 1,373,014.86

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Solution

The fourth proportional to 5,159,528.34, 7,739,467.20 and 1,373,014.86 is: 2,059,568.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,159,528.34 : 7,739,467.20 = 1,373,014.86 : x
  2. Step 2: Convert to fraction form
    5,159,528.34/7,739,467.20 = 1,373,014.86/x
  3. Step 3: Cross multiply
    5,159,528.34x = 7,739,467.20 × 1,373,014.86
  4. Step 4: Simplify right side
    5,159,528.34x = 10,626,403,474,082.59
  5. Step 5: Solve for x
    x = 10,626,403,474,082.59/5,159,528.34
  6. Step 6: Final answer
    x = 2,059,568.78

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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.