Home / 923,039.23-1,273,858.05-515,220.43

Finding the Fourth Proportional to 923,039.23, 1,273,858.05 and 515,220.43

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Solution

The fourth proportional to 923,039.23, 1,273,858.05 and 515,220.43 is: 711,039.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,039.23 : 1,273,858.05 = 515,220.43 : x
  2. Step 2: Convert to fraction form
    923,039.23/1,273,858.05 = 515,220.43/x
  3. Step 3: Cross multiply
    923,039.23x = 1,273,858.05 × 515,220.43
  4. Step 4: Simplify right side
    923,039.23x = 656,317,683,334.57
  5. Step 5: Solve for x
    x = 656,317,683,334.57/923,039.23
  6. Step 6: Final answer
    x = 711,039.86

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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.