Home / 1,221,579.24-1,685,789.52-677,750.76

Finding the Fourth Proportional to 1,221,579.24, 1,685,789.52 and 677,750.76

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Solution

The fourth proportional to 1,221,579.24, 1,685,789.52 and 677,750.76 is: 935,301.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,579.24 : 1,685,789.52 = 677,750.76 : x
  2. Step 2: Convert to fraction form
    1,221,579.24/1,685,789.52 = 677,750.76/x
  3. Step 3: Cross multiply
    1,221,579.24x = 1,685,789.52 × 677,750.76
  4. Step 4: Simplify right side
    1,221,579.24x = 1,142,545,128,380.04
  5. Step 5: Solve for x
    x = 1,142,545,128,380.04/1,221,579.24
  6. Step 6: Final answer
    x = 935,301.69

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1.5x scale

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.