Home / 386,001.66-578,983.95-105,519.54

Finding the Fourth Proportional to 386,001.66, 578,983.95 and 105,519.54

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Solution

The fourth proportional to 386,001.66, 578,983.95 and 105,519.54 is: 158,274.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,001.66 : 578,983.95 = 105,519.54 : x
  2. Step 2: Convert to fraction form
    386,001.66/578,983.95 = 105,519.54/x
  3. Step 3: Cross multiply
    386,001.66x = 578,983.95 × 105,519.54
  4. Step 4: Simplify right side
    386,001.66x = 61,094,120,071.38
  5. Step 5: Solve for x
    x = 61,094,120,071.38/386,001.66
  6. Step 6: Final answer
    x = 158,274.24

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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.