Home / 3,118,129.20-4,677,193.80-1,769,770.80

Finding the Fourth Proportional to 3,118,129.20, 4,677,193.80 and 1,769,770.80

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Solution

The fourth proportional to 3,118,129.20, 4,677,193.80 and 1,769,770.80 is: 2,654,656.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118,129.20 : 4,677,193.80 = 1,769,770.80 : x
  2. Step 2: Convert to fraction form
    3,118,129.20/4,677,193.80 = 1,769,770.80/x
  3. Step 3: Cross multiply
    3,118,129.20x = 4,677,193.80 × 1,769,770.80
  4. Step 4: Simplify right side
    3,118,129.20x = 8,277,561,013,181.04
  5. Step 5: Solve for x
    x = 8,277,561,013,181.04/3,118,129.20
  6. Step 6: Final answer
    x = 2,654,656.20

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Double scale
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Similar ratio
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1.5x scale

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.