Home / 638,056.60-880,557.33-351,576.61

Finding the Fourth Proportional to 638,056.60, 880,557.33 and 351,576.61

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Solution

The fourth proportional to 638,056.60, 880,557.33 and 351,576.61 is: 485,197.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,056.60 : 880,557.33 = 351,576.61 : x
  2. Step 2: Convert to fraction form
    638,056.60/880,557.33 = 351,576.61/x
  3. Step 3: Cross multiply
    638,056.60x = 880,557.33 × 351,576.61
  4. Step 4: Simplify right side
    638,056.60x = 309,583,360,992.05
  5. Step 5: Solve for x
    x = 309,583,360,992.05/638,056.60
  6. Step 6: Final answer
    x = 485,197.33

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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.