Home / 1,678,132.77-2,515,832.67-780,140.85

Finding the Fourth Proportional to 1,678,132.77, 2,515,832.67 and 780,140.85

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Solution

The fourth proportional to 1,678,132.77, 2,515,832.67 and 780,140.85 is: 1,169,576.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,132.77 : 2,515,832.67 = 780,140.85 : x
  2. Step 2: Convert to fraction form
    1,678,132.77/2,515,832.67 = 780,140.85/x
  3. Step 3: Cross multiply
    1,678,132.77x = 2,515,832.67 × 780,140.85
  4. Step 4: Simplify right side
    1,678,132.77x = 1,962,703,837,631.57
  5. Step 5: Solve for x
    x = 1,962,703,837,631.57/1,678,132.77
  6. Step 6: Final answer
    x = 1,169,576.01

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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.