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Finding the Fourth Proportional to 783,090.90, 1,093,965.30 and 783,090.90

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Solution

The fourth proportional to 783,090.90, 1,093,965.30 and 783,090.90 is: 1,093,965.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,090.90 : 1,093,965.30 = 783,090.90 : x
  2. Step 2: Convert to fraction form
    783,090.90/1,093,965.30 = 783,090.90/x
  3. Step 3: Cross multiply
    783,090.90x = 1,093,965.30 × 783,090.90
  4. Step 4: Simplify right side
    783,090.90x = 856,674,271,345.77
  5. Step 5: Solve for x
    x = 856,674,271,345.77/783,090.90
  6. Step 6: Final answer
    x = 1,093,965.30

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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.