Home / 2,777,985.40-4,166,978.10-783,441.40

Finding the Fourth Proportional to 2,777,985.40, 4,166,978.10 and 783,441.40

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Solution

The fourth proportional to 2,777,985.40, 4,166,978.10 and 783,441.40 is: 1,175,162.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,777,985.40 : 4,166,978.10 = 783,441.40 : x
  2. Step 2: Convert to fraction form
    2,777,985.40/4,166,978.10 = 783,441.40/x
  3. Step 3: Cross multiply
    2,777,985.40x = 4,166,978.10 × 783,441.40
  4. Step 4: Simplify right side
    2,777,985.40x = 3,264,583,156,433.34
  5. Step 5: Solve for x
    x = 3,264,583,156,433.34/2,777,985.40
  6. Step 6: Final answer
    x = 1,175,162.10

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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.