Home / 1,172,947.23-1,618,623-663,660.54

Finding the Fourth Proportional to 1,172,947.23, 1,618,623 and 663,660.54

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Solution

The fourth proportional to 1,172,947.23, 1,618,623 and 663,660.54 is: 915,826.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,947.23 : 1,618,623 = 663,660.54 : x
  2. Step 2: Convert to fraction form
    1,172,947.23/1,618,623 = 663,660.54/x
  3. Step 3: Cross multiply
    1,172,947.23x = 1,618,623 × 663,660.54
  4. Step 4: Simplify right side
    1,172,947.23x = 1,074,216,214,236.42
  5. Step 5: Solve for x
    x = 1,074,216,214,236.42/1,172,947.23
  6. Step 6: Final answer
    x = 915,826.55

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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.