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Finding the Fourth Proportional to 1,961,969.94, 2,943,009.99 and 542,025.90

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Solution

The fourth proportional to 1,961,969.94, 2,943,009.99 and 542,025.90 is: 813,054.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,961,969.94 : 2,943,009.99 = 542,025.90 : x
  2. Step 2: Convert to fraction form
    1,961,969.94/2,943,009.99 = 542,025.90/x
  3. Step 3: Cross multiply
    1,961,969.94x = 2,943,009.99 × 542,025.90
  4. Step 4: Simplify right side
    1,961,969.94x = 1,595,187,638,538.74
  5. Step 5: Solve for x
    x = 1,595,187,638,538.74/1,961,969.94
  6. Step 6: Final answer
    x = 813,054.07

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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.