Home / 3,163,385.40-4,745,209.31-919,523.40

Finding the Fourth Proportional to 3,163,385.40, 4,745,209.31 and 919,523.40

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Solution

The fourth proportional to 3,163,385.40, 4,745,209.31 and 919,523.40 is: 1,379,323.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,163,385.40 : 4,745,209.31 = 919,523.40 : x
  2. Step 2: Convert to fraction form
    3,163,385.40/4,745,209.31 = 919,523.40/x
  3. Step 3: Cross multiply
    3,163,385.40x = 4,745,209.31 × 919,523.40
  4. Step 4: Simplify right side
    3,163,385.40x = 4,363,330,998,442.85
  5. Step 5: Solve for x
    x = 4,363,330,998,442.85/3,163,385.40
  6. Step 6: Final answer
    x = 1,379,323.24

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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.