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Finding the Fourth Proportional to 1,805,905.80, 2,708,858.70 and 1,609,950.60

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Solution

The fourth proportional to 1,805,905.80, 2,708,858.70 and 1,609,950.60 is: 2,414,925.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,805,905.80 : 2,708,858.70 = 1,609,950.60 : x
  2. Step 2: Convert to fraction form
    1,805,905.80/2,708,858.70 = 1,609,950.60/x
  3. Step 3: Cross multiply
    1,805,905.80x = 2,708,858.70 × 1,609,950.60
  4. Step 4: Simplify right side
    1,805,905.80x = 4,361,128,689,380.22
  5. Step 5: Solve for x
    x = 4,361,128,689,380.22/1,805,905.80
  6. Step 6: Final answer
    x = 2,414,925.90

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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.