Home / 413,036.58-619,664.22-128,726.58

Finding the Fourth Proportional to 413,036.58, 619,664.22 and 128,726.58

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Solution

The fourth proportional to 413,036.58, 619,664.22 and 128,726.58 is: 193,123.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,036.58 : 619,664.22 = 128,726.58 : x
  2. Step 2: Convert to fraction form
    413,036.58/619,664.22 = 128,726.58/x
  3. Step 3: Cross multiply
    413,036.58x = 619,664.22 × 128,726.58
  4. Step 4: Simplify right side
    413,036.58x = 79,767,255,788.97
  5. Step 5: Solve for x
    x = 79,767,255,788.97/413,036.58
  6. Step 6: Final answer
    x = 193,123.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.