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Finding the Fourth Proportional to 778,933.20, 1,168,918.20 and 441,973.20

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Solution

The fourth proportional to 778,933.20, 1,168,918.20 and 441,973.20 is: 663,253.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,933.20 : 1,168,918.20 = 441,973.20 : x
  2. Step 2: Convert to fraction form
    778,933.20/1,168,918.20 = 441,973.20/x
  3. Step 3: Cross multiply
    778,933.20x = 1,168,918.20 × 441,973.20
  4. Step 4: Simplify right side
    778,933.20x = 516,630,517,392.24
  5. Step 5: Solve for x
    x = 516,630,517,392.24/778,933.20
  6. Step 6: Final answer
    x = 663,253.94

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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.