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Finding the Fourth Proportional to 3,779,506.44, 5,669,280.47 and 939,618.61

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Solution

The fourth proportional to 3,779,506.44, 5,669,280.47 and 939,618.61 is: 1,409,433.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,779,506.44 : 5,669,280.47 = 939,618.61 : x
  2. Step 2: Convert to fraction form
    3,779,506.44/5,669,280.47 = 939,618.61/x
  3. Step 3: Cross multiply
    3,779,506.44x = 5,669,280.47 × 939,618.61
  4. Step 4: Simplify right side
    3,779,506.44x = 5,326,961,423,097.39
  5. Step 5: Solve for x
    x = 5,326,961,423,097.39/3,779,506.44
  6. Step 6: Final answer
    x = 1,409,433.09

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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.