Home / 656,398.56-899,922.69-644,441.73

Finding the Fourth Proportional to 656,398.56, 899,922.69 and 644,441.73

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Solution

The fourth proportional to 656,398.56, 899,922.69 and 644,441.73 is: 883,529.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,398.56 : 899,922.69 = 644,441.73 : x
  2. Step 2: Convert to fraction form
    656,398.56/899,922.69 = 644,441.73/x
  3. Step 3: Cross multiply
    656,398.56x = 899,922.69 × 644,441.73
  4. Step 4: Simplify right side
    656,398.56x = 579,947,735,209.85
  5. Step 5: Solve for x
    x = 579,947,735,209.85/656,398.56
  6. Step 6: Final answer
    x = 883,529.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.