Home / 1,677,728.52-2,315,493.90-989,594.76

Finding the Fourth Proportional to 1,677,728.52, 2,315,493.90 and 989,594.76

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Solution

The fourth proportional to 1,677,728.52, 2,315,493.90 and 989,594.76 is: 1,365,775.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,677,728.52 : 2,315,493.90 = 989,594.76 : x
  2. Step 2: Convert to fraction form
    1,677,728.52/2,315,493.90 = 989,594.76/x
  3. Step 3: Cross multiply
    1,677,728.52x = 2,315,493.90 × 989,594.76
  4. Step 4: Simplify right side
    1,677,728.52x = 2,291,400,630,251.96
  5. Step 5: Solve for x
    x = 2,291,400,630,251.96/1,677,728.52
  6. Step 6: Final answer
    x = 1,365,775.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.