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Finding the Fourth Proportional to 552,015.10, 827,177.64 and 371,431.77

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Solution

The fourth proportional to 552,015.10, 827,177.64 and 371,431.77 is: 556,579.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,015.10 : 827,177.64 = 371,431.77 : x
  2. Step 2: Convert to fraction form
    552,015.10/827,177.64 = 371,431.77/x
  3. Step 3: Cross multiply
    552,015.10x = 827,177.64 × 371,431.77
  4. Step 4: Simplify right side
    552,015.10x = 307,240,054,929.62
  5. Step 5: Solve for x
    x = 307,240,054,929.62/552,015.10
  6. Step 6: Final answer
    x = 556,579.08

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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.