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Finding the Fourth Proportional to 663,210.48, 994,077 and 263,744.40

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Solution

The fourth proportional to 663,210.48, 994,077 and 263,744.40 is: 395,322.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,210.48 : 994,077 = 263,744.40 : x
  2. Step 2: Convert to fraction form
    663,210.48/994,077 = 263,744.40/x
  3. Step 3: Cross multiply
    663,210.48x = 994,077 × 263,744.40
  4. Step 4: Simplify right side
    663,210.48x = 262,182,241,918.80
  5. Step 5: Solve for x
    x = 262,182,241,918.80/663,210.48
  6. Step 6: Final answer
    x = 395,322.83

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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.