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Finding the Fourth Proportional to 874,073, 1,311,182.40 and 242,992.28

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Solution

The fourth proportional to 874,073, 1,311,182.40 and 242,992.28 is: 364,508.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,073 : 1,311,182.40 = 242,992.28 : x
  2. Step 2: Convert to fraction form
    874,073/1,311,182.40 = 242,992.28/x
  3. Step 3: Cross multiply
    874,073x = 1,311,182.40 × 242,992.28
  4. Step 4: Simplify right side
    874,073x = 318,607,200,871.87
  5. Step 5: Solve for x
    x = 318,607,200,871.87/874,073
  6. Step 6: Final answer
    x = 364,508.69

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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.