Home / 1,228,717.78-1,843,906.56-430,006.30

Finding the Fourth Proportional to 1,228,717.78, 1,843,906.56 and 430,006.30

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Solution

The fourth proportional to 1,228,717.78, 1,843,906.56 and 430,006.30 is: 645,299.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,717.78 : 1,843,906.56 = 430,006.30 : x
  2. Step 2: Convert to fraction form
    1,228,717.78/1,843,906.56 = 430,006.30/x
  3. Step 3: Cross multiply
    1,228,717.78x = 1,843,906.56 × 430,006.30
  4. Step 4: Simplify right side
    1,228,717.78x = 792,891,437,411.33
  5. Step 5: Solve for x
    x = 792,891,437,411.33/1,228,717.78
  6. Step 6: Final answer
    x = 645,299.88

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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.