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Finding the Fourth Proportional to 1,609,865.80, 2,414,798.70 and 1,208,332.60

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Solution

The fourth proportional to 1,609,865.80, 2,414,798.70 and 1,208,332.60 is: 1,812,498.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,609,865.80 : 2,414,798.70 = 1,208,332.60 : x
  2. Step 2: Convert to fraction form
    1,609,865.80/2,414,798.70 = 1,208,332.60/x
  3. Step 3: Cross multiply
    1,609,865.80x = 2,414,798.70 × 1,208,332.60
  4. Step 4: Simplify right side
    1,609,865.80x = 2,917,879,991,647.62
  5. Step 5: Solve for x
    x = 2,917,879,991,647.62/1,609,865.80
  6. Step 6: Final answer
    x = 1,812,498.90

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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.