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Finding the Fourth Proportional to 873,561.12, 1,310,662.08 and 368,249.28

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Solution

The fourth proportional to 873,561.12, 1,310,662.08 and 368,249.28 is: 552,508.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,561.12 : 1,310,662.08 = 368,249.28 : x
  2. Step 2: Convert to fraction form
    873,561.12/1,310,662.08 = 368,249.28/x
  3. Step 3: Cross multiply
    873,561.12x = 1,310,662.08 × 368,249.28
  4. Step 4: Simplify right side
    873,561.12x = 482,650,367,283.30
  5. Step 5: Solve for x
    x = 482,650,367,283.30/873,561.12
  6. Step 6: Final answer
    x = 552,508.98

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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.