Home / 1,643,533.92-2,268,033.29-918,387.59

Finding the Fourth Proportional to 1,643,533.92, 2,268,033.29 and 918,387.59

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Solution

The fourth proportional to 1,643,533.92, 2,268,033.29 and 918,387.59 is: 1,267,350.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643,533.92 : 2,268,033.29 = 918,387.59 : x
  2. Step 2: Convert to fraction form
    1,643,533.92/2,268,033.29 = 918,387.59/x
  3. Step 3: Cross multiply
    1,643,533.92x = 2,268,033.29 × 918,387.59
  4. Step 4: Simplify right side
    1,643,533.92x = 2,082,933,639,057.18
  5. Step 5: Solve for x
    x = 2,082,933,639,057.18/1,643,533.92
  6. Step 6: Final answer
    x = 1,267,350.57

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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.