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Finding the Fourth Proportional to 1,178,744.64, 1,768,129.56 and 943,582.20

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Solution

The fourth proportional to 1,178,744.64, 1,768,129.56 and 943,582.20 is: 1,415,383.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,744.64 : 1,768,129.56 = 943,582.20 : x
  2. Step 2: Convert to fraction form
    1,178,744.64/1,768,129.56 = 943,582.20/x
  3. Step 3: Cross multiply
    1,178,744.64x = 1,768,129.56 × 943,582.20
  4. Step 4: Simplify right side
    1,178,744.64x = 1,668,375,580,109.83
  5. Step 5: Solve for x
    x = 1,668,375,580,109.83/1,178,744.64
  6. Step 6: Final answer
    x = 1,415,383.39

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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.