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Finding the Fourth Proportional to 5,178,888, 7,768,332 and 1,633,032

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Solution

The fourth proportional to 5,178,888, 7,768,332 and 1,633,032 is: 2,449,548

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178,888 : 7,768,332 = 1,633,032 : x
  2. Step 2: Convert to fraction form
    5,178,888/7,768,332 = 1,633,032/x
  3. Step 3: Cross multiply
    5,178,888x = 7,768,332 × 1,633,032
  4. Step 4: Simplify right side
    5,178,888x = 12,685,934,742,624
  5. Step 5: Solve for x
    x = 12,685,934,742,624/5,178,888
  6. Step 6: Final answer
    x = 2,449,548

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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.