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Finding the Fourth Proportional to 783,101.90, 1,093,980.70 and 783,101.90

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Solution

The fourth proportional to 783,101.90, 1,093,980.70 and 783,101.90 is: 1,093,980.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,101.90 : 1,093,980.70 = 783,101.90 : x
  2. Step 2: Convert to fraction form
    783,101.90/1,093,980.70 = 783,101.90/x
  3. Step 3: Cross multiply
    783,101.90x = 1,093,980.70 × 783,101.90
  4. Step 4: Simplify right side
    783,101.90x = 856,698,364,733.33
  5. Step 5: Solve for x
    x = 856,698,364,733.33/783,101.90
  6. Step 6: Final answer
    x = 1,093,980.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.