Home / 987,921.77-1,363,331.66-535,212.77

Finding the Fourth Proportional to 987,921.77, 1,363,331.66 and 535,212.77

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Solution

The fourth proportional to 987,921.77, 1,363,331.66 and 535,212.77 is: 738,593.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,921.77 : 1,363,331.66 = 535,212.77 : x
  2. Step 2: Convert to fraction form
    987,921.77/1,363,331.66 = 535,212.77/x
  3. Step 3: Cross multiply
    987,921.77x = 1,363,331.66 × 535,212.77
  4. Step 4: Simplify right side
    987,921.77x = 729,672,504,684.58
  5. Step 5: Solve for x
    x = 729,672,504,684.58/987,921.77
  6. Step 6: Final answer
    x = 738,593.41

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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.