Home / 641,983.59-885,936.56-355,503.33

Finding the Fourth Proportional to 641,983.59, 885,936.56 and 355,503.33

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Solution

The fourth proportional to 641,983.59, 885,936.56 and 355,503.33 is: 490,594.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,983.59 : 885,936.56 = 355,503.33 : x
  2. Step 2: Convert to fraction form
    641,983.59/885,936.56 = 355,503.33/x
  3. Step 3: Cross multiply
    641,983.59x = 885,936.56 × 355,503.33
  4. Step 4: Simplify right side
    641,983.59x = 314,953,395,471.23
  5. Step 5: Solve for x
    x = 314,953,395,471.23/641,983.59
  6. Step 6: Final answer
    x = 490,594.15

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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.