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Finding the Fourth Proportional to 1,553,974.47, 2,326,579.20 and 822,840.93

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Solution

The fourth proportional to 1,553,974.47, 2,326,579.20 and 822,840.93 is: 1,231,940.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553,974.47 : 2,326,579.20 = 822,840.93 : x
  2. Step 2: Convert to fraction form
    1,553,974.47/2,326,579.20 = 822,840.93/x
  3. Step 3: Cross multiply
    1,553,974.47x = 2,326,579.20 × 822,840.93
  4. Step 4: Simplify right side
    1,553,974.47x = 1,914,404,592,646.66
  5. Step 5: Solve for x
    x = 1,914,404,592,646.66/1,553,974.47
  6. Step 6: Final answer
    x = 1,231,940.83

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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.