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Finding the Fourth Proportional to 1,854,698.80, 2,779,423.80 and 1,629,000.40

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Solution

The fourth proportional to 1,854,698.80, 2,779,423.80 and 1,629,000.40 is: 2,441,195.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,854,698.80 : 2,779,423.80 = 1,629,000.40 : x
  2. Step 2: Convert to fraction form
    1,854,698.80/2,779,423.80 = 1,629,000.40/x
  3. Step 3: Cross multiply
    1,854,698.80x = 2,779,423.80 × 1,629,000.40
  4. Step 4: Simplify right side
    1,854,698.80x = 4,527,682,481,969.52
  5. Step 5: Solve for x
    x = 4,527,682,481,969.52/1,854,698.80
  6. Step 6: Final answer
    x = 2,441,195.56

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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.