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Finding the Fourth Proportional to 1,245,673.70, 1,865,558.10 and 1,245,673.70

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Solution

The fourth proportional to 1,245,673.70, 1,865,558.10 and 1,245,673.70 is: 1,865,558.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,673.70 : 1,865,558.10 = 1,245,673.70 : x
  2. Step 2: Convert to fraction form
    1,245,673.70/1,865,558.10 = 1,245,673.70/x
  3. Step 3: Cross multiply
    1,245,673.70x = 1,865,558.10 × 1,245,673.70
  4. Step 4: Simplify right side
    1,245,673.70x = 2,323,876,660,991.97
  5. Step 5: Solve for x
    x = 2,323,876,660,991.97/1,245,673.70
  6. Step 6: Final answer
    x = 1,865,558.10

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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.