Home / 2,186,814.10-3,280,221.15-1,230,220.30

Finding the Fourth Proportional to 2,186,814.10, 3,280,221.15 and 1,230,220.30

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Solution

The fourth proportional to 2,186,814.10, 3,280,221.15 and 1,230,220.30 is: 1,845,330.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186,814.10 : 3,280,221.15 = 1,230,220.30 : x
  2. Step 2: Convert to fraction form
    2,186,814.10/3,280,221.15 = 1,230,220.30/x
  3. Step 3: Cross multiply
    2,186,814.10x = 3,280,221.15 × 1,230,220.30
  4. Step 4: Simplify right side
    2,186,814.10x = 4,035,394,647,219.35
  5. Step 5: Solve for x
    x = 4,035,394,647,219.35/2,186,814.10
  6. Step 6: Final answer
    x = 1,845,330.45

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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.