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Finding the Fourth Proportional to 5,193,803.72, 7,826,157.07 and 4,267,915.40

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Solution

The fourth proportional to 5,193,803.72, 7,826,157.07 and 4,267,915.40 is: 6,431,004.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,193,803.72 : 7,826,157.07 = 4,267,915.40 : x
  2. Step 2: Convert to fraction form
    5,193,803.72/7,826,157.07 = 4,267,915.40/x
  3. Step 3: Cross multiply
    5,193,803.72x = 7,826,157.07 × 4,267,915.40
  4. Step 4: Simplify right side
    5,193,803.72x = 33,401,376,281,871.88
  5. Step 5: Solve for x
    x = 33,401,376,281,871.88/5,193,803.72
  6. Step 6: Final answer
    x = 6,431,004.73

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.