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Finding the Fourth Proportional to 5,189,428.88, 7,784,886.21 and 1,595,497.59

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Solution

The fourth proportional to 5,189,428.88, 7,784,886.21 and 1,595,497.59 is: 2,393,474.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189,428.88 : 7,784,886.21 = 1,595,497.59 : x
  2. Step 2: Convert to fraction form
    5,189,428.88/7,784,886.21 = 1,595,497.59/x
  3. Step 3: Cross multiply
    5,189,428.88x = 7,784,886.21 × 1,595,497.59
  4. Step 4: Simplify right side
    5,189,428.88x = 12,420,767,186,479.23
  5. Step 5: Solve for x
    x = 12,420,767,186,479.23/5,189,428.88
  6. Step 6: Final answer
    x = 2,393,474.79

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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.