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Finding the Fourth Proportional to 1,159,858.16, 1,739,945.34 and 673,768.64

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Solution

The fourth proportional to 1,159,858.16, 1,739,945.34 and 673,768.64 is: 1,010,744.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159,858.16 : 1,739,945.34 = 673,768.64 : x
  2. Step 2: Convert to fraction form
    1,159,858.16/1,739,945.34 = 673,768.64/x
  3. Step 3: Cross multiply
    1,159,858.16x = 1,739,945.34 × 673,768.64
  4. Step 4: Simplify right side
    1,159,858.16x = 1,172,320,605,406.14
  5. Step 5: Solve for x
    x = 1,172,320,605,406.14/1,159,858.16
  6. Step 6: Final answer
    x = 1,010,744.80

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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.