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Finding the Fourth Proportional to 1,890,122.22, 2,834,674.68 and 692,050.80

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Solution

The fourth proportional to 1,890,122.22, 2,834,674.68 and 692,050.80 is: 1,037,889.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890,122.22 : 2,834,674.68 = 692,050.80 : x
  2. Step 2: Convert to fraction form
    1,890,122.22/2,834,674.68 = 692,050.80/x
  3. Step 3: Cross multiply
    1,890,122.22x = 2,834,674.68 × 692,050.80
  4. Step 4: Simplify right side
    1,890,122.22x = 1,961,738,880,033.74
  5. Step 5: Solve for x
    x = 1,961,738,880,033.74/1,890,122.22
  6. Step 6: Final answer
    x = 1,037,889.96

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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.