Home / 638,677.13-881,334.20-366,553.51

Finding the Fourth Proportional to 638,677.13, 881,334.20 and 366,553.51

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Solution

The fourth proportional to 638,677.13, 881,334.20 and 366,553.51 is: 505,820.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,677.13 : 881,334.20 = 366,553.51 : x
  2. Step 2: Convert to fraction form
    638,677.13/881,334.20 = 366,553.51/x
  3. Step 3: Cross multiply
    638,677.13x = 881,334.20 × 366,553.51
  4. Step 4: Simplify right side
    638,677.13x = 323,056,143,206.09
  5. Step 5: Solve for x
    x = 323,056,143,206.09/638,677.13
  6. Step 6: Final answer
    x = 505,820.75

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Double scale
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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.