Home / 638,864.35-881,633.54-366,984.90

Finding the Fourth Proportional to 638,864.35, 881,633.54 and 366,984.90

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Solution

The fourth proportional to 638,864.35, 881,633.54 and 366,984.90 is: 506,439.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,864.35 : 881,633.54 = 366,984.90 : x
  2. Step 2: Convert to fraction form
    638,864.35/881,633.54 = 366,984.90/x
  3. Step 3: Cross multiply
    638,864.35x = 881,633.54 × 366,984.90
  4. Step 4: Simplify right side
    638,864.35x = 323,546,197,431.01
  5. Step 5: Solve for x
    x = 323,546,197,431.01/638,864.35
  6. Step 6: Final answer
    x = 506,439.59

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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.