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Finding the Fourth Proportional to 1,890,115.74, 2,834,033.40 and 753,053.22

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Solution

The fourth proportional to 1,890,115.74, 2,834,033.40 and 753,053.22 is: 1,129,125.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890,115.74 : 2,834,033.40 = 753,053.22 : x
  2. Step 2: Convert to fraction form
    1,890,115.74/2,834,033.40 = 753,053.22/x
  3. Step 3: Cross multiply
    1,890,115.74x = 2,834,033.40 × 753,053.22
  4. Step 4: Simplify right side
    1,890,115.74x = 2,134,177,977,457.55
  5. Step 5: Solve for x
    x = 2,134,177,977,457.55/1,890,115.74
  6. Step 6: Final answer
    x = 1,129,125.55

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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.