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Finding the Fourth Proportional to 1,369,993.07, 1,890,594.11 and 758,188.02

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Solution

The fourth proportional to 1,369,993.07, 1,890,594.11 and 758,188.02 is: 1,046,301.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,993.07 : 1,890,594.11 = 758,188.02 : x
  2. Step 2: Convert to fraction form
    1,369,993.07/1,890,594.11 = 758,188.02/x
  3. Step 3: Cross multiply
    1,369,993.07x = 1,890,594.11 × 758,188.02
  4. Step 4: Simplify right side
    1,369,993.07x = 1,433,425,804,884.56
  5. Step 5: Solve for x
    x = 1,433,425,804,884.56/1,369,993.07
  6. Step 6: Final answer
    x = 1,046,301.50

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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.