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Finding the Fourth Proportional to 1,697,784.54, 2,342,893.28 and 933,837.90

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Solution

The fourth proportional to 1,697,784.54, 2,342,893.28 and 933,837.90 is: 1,288,669.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,697,784.54 : 2,342,893.28 = 933,837.90 : x
  2. Step 2: Convert to fraction form
    1,697,784.54/2,342,893.28 = 933,837.90/x
  3. Step 3: Cross multiply
    1,697,784.54x = 2,342,893.28 × 933,837.90
  4. Step 4: Simplify right side
    1,697,784.54x = 2,187,882,540,519.31
  5. Step 5: Solve for x
    x = 2,187,882,540,519.31/1,697,784.54
  6. Step 6: Final answer
    x = 1,288,669.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.