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Finding the Fourth Proportional to 1,738,883.80, 2,607,450.90 and 1,029,129.40

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Solution

The fourth proportional to 1,738,883.80, 2,607,450.90 and 1,029,129.40 is: 1,543,176.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,738,883.80 : 2,607,450.90 = 1,029,129.40 : x
  2. Step 2: Convert to fraction form
    1,738,883.80/2,607,450.90 = 1,029,129.40/x
  3. Step 3: Cross multiply
    1,738,883.80x = 2,607,450.90 × 1,029,129.40
  4. Step 4: Simplify right side
    1,738,883.80x = 2,683,404,380,246.46
  5. Step 5: Solve for x
    x = 2,683,404,380,246.46/1,738,883.80
  6. Step 6: Final answer
    x = 1,543,176.36

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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.