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Finding the Fourth Proportional to 706,616.20, 1,059,642.70 and 233,169.80

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Solution

The fourth proportional to 706,616.20, 1,059,642.70 and 233,169.80 is: 349,661.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,616.20 : 1,059,642.70 = 233,169.80 : x
  2. Step 2: Convert to fraction form
    706,616.20/1,059,642.70 = 233,169.80/x
  3. Step 3: Cross multiply
    706,616.20x = 1,059,642.70 × 233,169.80
  4. Step 4: Simplify right side
    706,616.20x = 247,076,676,430.46
  5. Step 5: Solve for x
    x = 247,076,676,430.46/706,616.20
  6. Step 6: Final answer
    x = 349,661.78

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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.