Home / 1,212,893.40-1,819,340.10-413,982.30

Finding the Fourth Proportional to 1,212,893.40, 1,819,340.10 and 413,982.30

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Solution

The fourth proportional to 1,212,893.40, 1,819,340.10 and 413,982.30 is: 620,973.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,893.40 : 1,819,340.10 = 413,982.30 : x
  2. Step 2: Convert to fraction form
    1,212,893.40/1,819,340.10 = 413,982.30/x
  3. Step 3: Cross multiply
    1,212,893.40x = 1,819,340.10 × 413,982.30
  4. Step 4: Simplify right side
    1,212,893.40x = 753,174,599,080.23
  5. Step 5: Solve for x
    x = 753,174,599,080.23/1,212,893.40
  6. Step 6: Final answer
    x = 620,973.45

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Double scale
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Similar ratio
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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.