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Finding the Fourth Proportional to 547,892.17, 756,089.44 and 306,174.74

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Solution

The fourth proportional to 547,892.17, 756,089.44 and 306,174.74 is: 422,520.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,892.17 : 756,089.44 = 306,174.74 : x
  2. Step 2: Convert to fraction form
    547,892.17/756,089.44 = 306,174.74/x
  3. Step 3: Cross multiply
    547,892.17x = 756,089.44 × 306,174.74
  4. Step 4: Simplify right side
    547,892.17x = 231,495,483,162.86
  5. Step 5: Solve for x
    x = 231,495,483,162.86/547,892.17
  6. Step 6: Final answer
    x = 422,520.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.