Home / 283,726.24-391,569.78-211,981.72

Finding the Fourth Proportional to 283,726.24, 391,569.78 and 211,981.72

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Solution

The fourth proportional to 283,726.24, 391,569.78 and 211,981.72 is: 292,555.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,726.24 : 391,569.78 = 211,981.72 : x
  2. Step 2: Convert to fraction form
    283,726.24/391,569.78 = 211,981.72/x
  3. Step 3: Cross multiply
    283,726.24x = 391,569.78 × 211,981.72
  4. Step 4: Simplify right side
    283,726.24x = 83,005,635,464.42
  5. Step 5: Solve for x
    x = 83,005,635,464.42/283,726.24
  6. Step 6: Final answer
    x = 292,555.37

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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.