Home / 386,001.16-578,983.20-105,519.04

Finding the Fourth Proportional to 386,001.16, 578,983.20 and 105,519.04

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Solution

The fourth proportional to 386,001.16, 578,983.20 and 105,519.04 is: 158,273.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,001.16 : 578,983.20 = 105,519.04 : x
  2. Step 2: Convert to fraction form
    386,001.16/578,983.20 = 105,519.04/x
  3. Step 3: Cross multiply
    386,001.16x = 578,983.20 × 105,519.04
  4. Step 4: Simplify right side
    386,001.16x = 61,093,751,440.13
  5. Step 5: Solve for x
    x = 61,093,751,440.13/386,001.16
  6. Step 6: Final answer
    x = 158,273.49

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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.