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Finding the Fourth Proportional to 671,616.80, 1,006,503.60 and 547,200.80

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Solution

The fourth proportional to 671,616.80, 1,006,503.60 and 547,200.80 is: 820,050.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,616.80 : 1,006,503.60 = 547,200.80 : x
  2. Step 2: Convert to fraction form
    671,616.80/1,006,503.60 = 547,200.80/x
  3. Step 3: Cross multiply
    671,616.80x = 1,006,503.60 × 547,200.80
  4. Step 4: Simplify right side
    671,616.80x = 550,759,575,122.88
  5. Step 5: Solve for x
    x = 550,759,575,122.88/671,616.80
  6. Step 6: Final answer
    x = 820,050.33

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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.