Home / 1,889,611.70-2,834,417.55-768,485.30

Finding the Fourth Proportional to 1,889,611.70, 2,834,417.55 and 768,485.30

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Solution

The fourth proportional to 1,889,611.70, 2,834,417.55 and 768,485.30 is: 1,152,727.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889,611.70 : 2,834,417.55 = 768,485.30 : x
  2. Step 2: Convert to fraction form
    1,889,611.70/2,834,417.55 = 768,485.30/x
  3. Step 3: Cross multiply
    1,889,611.70x = 2,834,417.55 × 768,485.30
  4. Step 4: Simplify right side
    1,889,611.70x = 2,178,208,221,237.02
  5. Step 5: Solve for x
    x = 2,178,208,221,237.02/1,889,611.70
  6. Step 6: Final answer
    x = 1,152,727.95

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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.