Home / 386,616.14-580,007.63-116,721.89

Finding the Fourth Proportional to 386,616.14, 580,007.63 and 116,721.89

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Solution

The fourth proportional to 386,616.14, 580,007.63 and 116,721.89 is: 175,108.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,616.14 : 580,007.63 = 116,721.89 : x
  2. Step 2: Convert to fraction form
    386,616.14/580,007.63 = 116,721.89/x
  3. Step 3: Cross multiply
    386,616.14x = 580,007.63 × 116,721.89
  4. Step 4: Simplify right side
    386,616.14x = 67,699,586,788.02
  5. Step 5: Solve for x
    x = 67,699,586,788.02/386,616.14
  6. Step 6: Final answer
    x = 175,108.02

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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.