Home / 399,786.11-551,527.46-238,547.48

Finding the Fourth Proportional to 399,786.11, 551,527.46 and 238,547.48

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Solution

The fourth proportional to 399,786.11, 551,527.46 and 238,547.48 is: 329,089.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,786.11 : 551,527.46 = 238,547.48 : x
  2. Step 2: Convert to fraction form
    399,786.11/551,527.46 = 238,547.48/x
  3. Step 3: Cross multiply
    399,786.11x = 551,527.46 × 238,547.48
  4. Step 4: Simplify right side
    399,786.11x = 131,565,485,109.41
  5. Step 5: Solve for x
    x = 131,565,485,109.41/399,786.11
  6. Step 6: Final answer
    x = 329,089.69

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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.