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Finding the Fourth Proportional to 606,224.36, 836,443.32 and 391,318.40

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Solution

The fourth proportional to 606,224.36, 836,443.32 and 391,318.40 is: 539,924.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,224.36 : 836,443.32 = 391,318.40 : x
  2. Step 2: Convert to fraction form
    606,224.36/836,443.32 = 391,318.40/x
  3. Step 3: Cross multiply
    606,224.36x = 836,443.32 × 391,318.40
  4. Step 4: Simplify right side
    606,224.36x = 327,315,661,673.09
  5. Step 5: Solve for x
    x = 327,315,661,673.09/606,224.36
  6. Step 6: Final answer
    x = 539,924.96

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1.5x scale

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.