Home / 938,600.84-1,296,338.30-636,269.96

Finding the Fourth Proportional to 938,600.84, 1,296,338.30 and 636,269.96

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Solution

The fourth proportional to 938,600.84, 1,296,338.30 and 636,269.96 is: 878,777.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,600.84 : 1,296,338.30 = 636,269.96 : x
  2. Step 2: Convert to fraction form
    938,600.84/1,296,338.30 = 636,269.96/x
  3. Step 3: Cross multiply
    938,600.84x = 1,296,338.30 × 636,269.96
  4. Step 4: Simplify right side
    938,600.84x = 824,821,118,287.47
  5. Step 5: Solve for x
    x = 824,821,118,287.47/938,600.84
  6. Step 6: Final answer
    x = 878,777.31

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1.5x scale

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.