Home / 910,865.77-1,257,105.59-528,892.56

Finding the Fourth Proportional to 910,865.77, 1,257,105.59 and 528,892.56

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Solution

The fourth proportional to 910,865.77, 1,257,105.59 and 528,892.56 is: 729,936.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,865.77 : 1,257,105.59 = 528,892.56 : x
  2. Step 2: Convert to fraction form
    910,865.77/1,257,105.59 = 528,892.56/x
  3. Step 3: Cross multiply
    910,865.77x = 1,257,105.59 × 528,892.56
  4. Step 4: Simplify right side
    910,865.77x = 664,873,793,685.41
  5. Step 5: Solve for x
    x = 664,873,793,685.41/910,865.77
  6. Step 6: Final answer
    x = 729,936.08

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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.