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Finding the Fourth Proportional to 606,464.45, 837,189.95 and 391,709.25

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Solution

The fourth proportional to 606,464.45, 837,189.95 and 391,709.25 is: 540,732.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,464.45 : 837,189.95 = 391,709.25 : x
  2. Step 2: Convert to fraction form
    606,464.45/837,189.95 = 391,709.25/x
  3. Step 3: Cross multiply
    606,464.45x = 837,189.95 × 391,709.25
  4. Step 4: Simplify right side
    606,464.45x = 327,935,045,463.49
  5. Step 5: Solve for x
    x = 327,935,045,463.49/606,464.45
  6. Step 6: Final answer
    x = 540,732.51

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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.