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Finding the Fourth Proportional to 1,796,700.40, 2,697,018.90 and 1,123,541.80

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Solution

The fourth proportional to 1,796,700.40, 2,697,018.90 and 1,123,541.80 is: 1,686,543.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,796,700.40 : 2,697,018.90 = 1,123,541.80 : x
  2. Step 2: Convert to fraction form
    1,796,700.40/2,697,018.90 = 1,123,541.80/x
  3. Step 3: Cross multiply
    1,796,700.40x = 2,697,018.90 × 1,123,541.80
  4. Step 4: Simplify right side
    1,796,700.40x = 3,030,213,469,540.02
  5. Step 5: Solve for x
    x = 3,030,213,469,540.02/1,796,700.40
  6. Step 6: Final answer
    x = 1,686,543.55

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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.