Home / 1,319,453.14-1,978,907.55-644,841.94

Finding the Fourth Proportional to 1,319,453.14, 1,978,907.55 and 644,841.94

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Solution

The fourth proportional to 1,319,453.14, 1,978,907.55 and 644,841.94 is: 967,129.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,453.14 : 1,978,907.55 = 644,841.94 : x
  2. Step 2: Convert to fraction form
    1,319,453.14/1,978,907.55 = 644,841.94/x
  3. Step 3: Cross multiply
    1,319,453.14x = 1,978,907.55 × 644,841.94
  4. Step 4: Simplify right side
    1,319,453.14x = 1,276,082,583,622.65
  5. Step 5: Solve for x
    x = 1,276,082,583,622.65/1,319,453.14
  6. Step 6: Final answer
    x = 967,129.90

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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.