Home / 643,187.00-964,919.84-193,870.28

Finding the Fourth Proportional to 643,187.00, 964,919.84 and 193,870.28

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Solution

The fourth proportional to 643,187.00, 964,919.84 and 193,870.28 is: 290,847.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,187.00 : 964,919.84 = 193,870.28 : x
  2. Step 2: Convert to fraction form
    643,187.00/964,919.84 = 193,870.28/x
  3. Step 3: Cross multiply
    643,187.00x = 964,919.84 × 193,870.28
  4. Step 4: Simplify right side
    643,187.00x = 187,069,281,001.30
  5. Step 5: Solve for x
    x = 187,069,281,001.30/643,187.00
  6. Step 6: Final answer
    x = 290,847.42

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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.