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Finding the Fourth Proportional to 1,892,811.97, 2,839,123.58 and 694,640.02

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Solution

The fourth proportional to 1,892,811.97, 2,839,123.58 and 694,640.02 is: 1,041,925.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,892,811.97 : 2,839,123.58 = 694,640.02 : x
  2. Step 2: Convert to fraction form
    1,892,811.97/2,839,123.58 = 694,640.02/x
  3. Step 3: Cross multiply
    1,892,811.97x = 2,839,123.58 × 694,640.02
  4. Step 4: Simplify right side
    1,892,811.97x = 1,972,168,860,393.67
  5. Step 5: Solve for x
    x = 1,972,168,860,393.67/1,892,811.97
  6. Step 6: Final answer
    x = 1,041,925.40

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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.