Home / 923,815.08-1,274,851.34-515,912.60

Finding the Fourth Proportional to 923,815.08, 1,274,851.34 and 515,912.60

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Solution

The fourth proportional to 923,815.08, 1,274,851.34 and 515,912.60 is: 711,951.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,815.08 : 1,274,851.34 = 515,912.60 : x
  2. Step 2: Convert to fraction form
    923,815.08/1,274,851.34 = 515,912.60/x
  3. Step 3: Cross multiply
    923,815.08x = 1,274,851.34 × 515,912.60
  4. Step 4: Simplify right side
    923,815.08x = 657,711,869,432.88
  5. Step 5: Solve for x
    x = 657,711,869,432.88/923,815.08
  6. Step 6: Final answer
    x = 711,951.87

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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.