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Finding the Fourth Proportional to 514,418.64, 771,651.65 and 248,402.89

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Solution

The fourth proportional to 514,418.64, 771,651.65 and 248,402.89 is: 372,615.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,418.64 : 771,651.65 = 248,402.89 : x
  2. Step 2: Convert to fraction form
    514,418.64/771,651.65 = 248,402.89/x
  3. Step 3: Cross multiply
    514,418.64x = 771,651.65 × 248,402.89
  4. Step 4: Simplify right side
    514,418.64x = 191,680,499,933.27
  5. Step 5: Solve for x
    x = 191,680,499,933.27/514,418.64
  6. Step 6: Final answer
    x = 372,615.77

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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.