Home / 527,977.87-727,904.60-419,442.33

Finding the Fourth Proportional to 527,977.87, 727,904.60 and 419,442.33

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Solution

The fourth proportional to 527,977.87, 727,904.60 and 419,442.33 is: 578,270.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,977.87 : 727,904.60 = 419,442.33 : x
  2. Step 2: Convert to fraction form
    527,977.87/727,904.60 = 419,442.33/x
  3. Step 3: Cross multiply
    527,977.87x = 727,904.60 × 419,442.33
  4. Step 4: Simplify right side
    527,977.87x = 305,313,995,704.98
  5. Step 5: Solve for x
    x = 305,313,995,704.98/527,977.87
  6. Step 6: Final answer
    x = 578,270.44

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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.