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Finding the Fourth Proportional to 606,476.16, 837,206.12 and 391,720.97

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Solution

The fourth proportional to 606,476.16, 837,206.12 and 391,720.97 is: 540,748.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,476.16 : 837,206.12 = 391,720.97 : x
  2. Step 2: Convert to fraction form
    606,476.16/837,206.12 = 391,720.97/x
  3. Step 3: Cross multiply
    606,476.16x = 837,206.12 × 391,720.97
  4. Step 4: Simplify right side
    606,476.16x = 327,951,190,209.61
  5. Step 5: Solve for x
    x = 327,951,190,209.61/606,476.16
  6. Step 6: Final answer
    x = 540,748.69

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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.