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Finding the Fourth Proportional to 384,744.70, 577,408.65 and 251,580.70

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Solution

The fourth proportional to 384,744.70, 577,408.65 and 251,580.70 is: 377,561.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,744.70 : 577,408.65 = 251,580.70 : x
  2. Step 2: Convert to fraction form
    384,744.70/577,408.65 = 251,580.70/x
  3. Step 3: Cross multiply
    384,744.70x = 577,408.65 × 251,580.70
  4. Step 4: Simplify right side
    384,744.70x = 145,264,872,353.06
  5. Step 5: Solve for x
    x = 145,264,872,353.06/384,744.70
  6. Step 6: Final answer
    x = 377,561.72

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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.