Home / 638,028.92-880,203.27-379,761.05

Finding the Fourth Proportional to 638,028.92, 880,203.27 and 379,761.05

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Solution

The fourth proportional to 638,028.92, 880,203.27 and 379,761.05 is: 523,905.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,028.92 : 880,203.27 = 379,761.05 : x
  2. Step 2: Convert to fraction form
    638,028.92/880,203.27 = 379,761.05/x
  3. Step 3: Cross multiply
    638,028.92x = 880,203.27 × 379,761.05
  4. Step 4: Simplify right side
    638,028.92x = 334,266,913,627.62
  5. Step 5: Solve for x
    x = 334,266,913,627.62/638,028.92
  6. Step 6: Final answer
    x = 523,905.58

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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.