Home / 2,778,700.11-4,167,466.96-783,689.55

Finding the Fourth Proportional to 2,778,700.11, 4,167,466.96 and 783,689.55

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Solution

The fourth proportional to 2,778,700.11, 4,167,466.96 and 783,689.55 is: 1,175,369.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778,700.11 : 4,167,466.96 = 783,689.55 : x
  2. Step 2: Convert to fraction form
    2,778,700.11/4,167,466.96 = 783,689.55/x
  3. Step 3: Cross multiply
    2,778,700.11x = 4,167,466.96 × 783,689.55
  4. Step 4: Simplify right side
    2,778,700.11x = 3,266,000,306,522.27
  5. Step 5: Solve for x
    x = 3,266,000,306,522.27/2,778,700.11
  6. Step 6: Final answer
    x = 1,175,369.84

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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.