Home / 942,855.54-1,299,630.06-636,835.92

Finding the Fourth Proportional to 942,855.54, 1,299,630.06 and 636,835.92

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Solution

The fourth proportional to 942,855.54, 1,299,630.06 and 636,835.92 is: 877,813.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,855.54 : 1,299,630.06 = 636,835.92 : x
  2. Step 2: Convert to fraction form
    942,855.54/1,299,630.06 = 636,835.92/x
  3. Step 3: Cross multiply
    942,855.54x = 1,299,630.06 × 636,835.92
  4. Step 4: Simplify right side
    942,855.54x = 827,651,104,919.76
  5. Step 5: Solve for x
    x = 827,651,104,919.76/942,855.54
  6. Step 6: Final answer
    x = 877,813.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.