Home / 923,099.13-1,273,940.82-515,280.42

Finding the Fourth Proportional to 923,099.13, 1,273,940.82 and 515,280.42

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Solution

The fourth proportional to 923,099.13, 1,273,940.82 and 515,280.42 is: 711,122.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,099.13 : 1,273,940.82 = 515,280.42 : x
  2. Step 2: Convert to fraction form
    923,099.13/1,273,940.82 = 515,280.42/x
  3. Step 3: Cross multiply
    923,099.13x = 1,273,940.82 × 515,280.42
  4. Step 4: Simplify right side
    923,099.13x = 656,436,760,784.74
  5. Step 5: Solve for x
    x = 656,436,760,784.74/923,099.13
  6. Step 6: Final answer
    x = 711,122.72

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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.