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Finding the Fourth Proportional to 399,953.65, 551,970.17 and 227,924.23

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Solution

The fourth proportional to 399,953.65, 551,970.17 and 227,924.23 is: 314,554.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,953.65 : 551,970.17 = 227,924.23 : x
  2. Step 2: Convert to fraction form
    399,953.65/551,970.17 = 227,924.23/x
  3. Step 3: Cross multiply
    399,953.65x = 551,970.17 × 227,924.23
  4. Step 4: Simplify right side
    399,953.65x = 125,807,375,980.22
  5. Step 5: Solve for x
    x = 125,807,375,980.22/399,953.65
  6. Step 6: Final answer
    x = 314,554.89

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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.