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Finding the Fourth Proportional to 1,892,541.84, 2,611,358.43 and 1,076,697.90

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Solution

The fourth proportional to 1,892,541.84, 2,611,358.43 and 1,076,697.90 is: 1,485,644.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,892,541.84 : 2,611,358.43 = 1,076,697.90 : x
  2. Step 2: Convert to fraction form
    1,892,541.84/2,611,358.43 = 1,076,697.90/x
  3. Step 3: Cross multiply
    1,892,541.84x = 2,611,358.43 × 1,076,697.90
  4. Step 4: Simplify right side
    1,892,541.84x = 2,811,644,137,728.30
  5. Step 5: Solve for x
    x = 2,811,644,137,728.30/1,892,541.84
  6. Step 6: Final answer
    x = 1,485,644.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.