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Finding the Fourth Proportional to 1,166,935.40, 1,750,403.10 and 930,739.40

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Solution

The fourth proportional to 1,166,935.40, 1,750,403.10 and 930,739.40 is: 1,396,109.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,166,935.40 : 1,750,403.10 = 930,739.40 : x
  2. Step 2: Convert to fraction form
    1,166,935.40/1,750,403.10 = 930,739.40/x
  3. Step 3: Cross multiply
    1,166,935.40x = 1,750,403.10 × 930,739.40
  4. Step 4: Simplify right side
    1,166,935.40x = 1,629,169,131,052.14
  5. Step 5: Solve for x
    x = 1,629,169,131,052.14/1,166,935.40
  6. Step 6: Final answer
    x = 1,396,109.10

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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.