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Finding the Fourth Proportional to 514,242.05, 771,860.61 and 248,189.85

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Solution

The fourth proportional to 514,242.05, 771,860.61 and 248,189.85 is: 372,524.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,242.05 : 771,860.61 = 248,189.85 : x
  2. Step 2: Convert to fraction form
    514,242.05/771,860.61 = 248,189.85/x
  3. Step 3: Cross multiply
    514,242.05x = 771,860.61 × 248,189.85
  4. Step 4: Simplify right side
    514,242.05x = 191,567,969,016.81
  5. Step 5: Solve for x
    x = 191,567,969,016.81/514,242.05
  6. Step 6: Final answer
    x = 372,524.91

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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.