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Finding the Fourth Proportional to 587,021.80, 880,532.70 and 547,364.20

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Solution

The fourth proportional to 587,021.80, 880,532.70 and 547,364.20 is: 821,046.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,021.80 : 880,532.70 = 547,364.20 : x
  2. Step 2: Convert to fraction form
    587,021.80/880,532.70 = 547,364.20/x
  3. Step 3: Cross multiply
    587,021.80x = 880,532.70 × 547,364.20
  4. Step 4: Simplify right side
    587,021.80x = 481,972,076,909.34
  5. Step 5: Solve for x
    x = 481,972,076,909.34/587,021.80
  6. Step 6: Final answer
    x = 821,046.30

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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.