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Finding the Fourth Proportional to 1,796,689.90, 2,697,003.15 and 1,123,531.30

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Solution

The fourth proportional to 1,796,689.90, 2,697,003.15 and 1,123,531.30 is: 1,686,527.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,796,689.90 : 2,697,003.15 = 1,123,531.30 : x
  2. Step 2: Convert to fraction form
    1,796,689.90/2,697,003.15 = 1,123,531.30/x
  3. Step 3: Cross multiply
    1,796,689.90x = 2,697,003.15 × 1,123,531.30
  4. Step 4: Simplify right side
    1,796,689.90x = 3,030,167,455,223.60
  5. Step 5: Solve for x
    x = 3,030,167,455,223.60/1,796,689.90
  6. Step 6: Final answer
    x = 1,686,527.79

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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.