Home / 1,286,586.40-1,929,879.60-577,998.40

Finding the Fourth Proportional to 1,286,586.40, 1,929,879.60 and 577,998.40

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Solution

The fourth proportional to 1,286,586.40, 1,929,879.60 and 577,998.40 is: 866,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,586.40 : 1,929,879.60 = 577,998.40 : x
  2. Step 2: Convert to fraction form
    1,286,586.40/1,929,879.60 = 577,998.40/x
  3. Step 3: Cross multiply
    1,286,586.40x = 1,929,879.60 × 577,998.40
  4. Step 4: Simplify right side
    1,286,586.40x = 1,115,467,320,992.64
  5. Step 5: Solve for x
    x = 1,115,467,320,992.64/1,286,586.40
  6. Step 6: Final answer
    x = 866,997.60

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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.