Home / 663,789.71-916,028.52-361,983.71

Finding the Fourth Proportional to 663,789.71, 916,028.52 and 361,983.71

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Solution

The fourth proportional to 663,789.71, 916,028.52 and 361,983.71 is: 499,536.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,789.71 : 916,028.52 = 361,983.71 : x
  2. Step 2: Convert to fraction form
    663,789.71/916,028.52 = 361,983.71/x
  3. Step 3: Cross multiply
    663,789.71x = 916,028.52 × 361,983.71
  4. Step 4: Simplify right side
    663,789.71x = 331,587,402,135.41
  5. Step 5: Solve for x
    x = 331,587,402,135.41/663,789.71
  6. Step 6: Final answer
    x = 499,536.82

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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.