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Finding the Fourth Proportional to 5,197,613.88, 7,795,825.16 and 1,359,806.65

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Solution

The fourth proportional to 5,197,613.88, 7,795,825.16 and 1,359,806.65 is: 2,039,554.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,197,613.88 : 7,795,825.16 = 1,359,806.65 : x
  2. Step 2: Convert to fraction form
    5,197,613.88/7,795,825.16 = 1,359,806.65/x
  3. Step 3: Cross multiply
    5,197,613.88x = 7,795,825.16 × 1,359,806.65
  4. Step 4: Simplify right side
    5,197,613.88x = 10,600,814,894,805.31
  5. Step 5: Solve for x
    x = 10,600,814,894,805.31/5,197,613.88
  6. Step 6: Final answer
    x = 2,039,554.14

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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.