Home / 716,118.24-988,223.43-393,828.33

Finding the Fourth Proportional to 716,118.24, 988,223.43 and 393,828.33

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Solution

The fourth proportional to 716,118.24, 988,223.43 and 393,828.33 is: 543,472.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,118.24 : 988,223.43 = 393,828.33 : x
  2. Step 2: Convert to fraction form
    716,118.24/988,223.43 = 393,828.33/x
  3. Step 3: Cross multiply
    716,118.24x = 988,223.43 × 393,828.33
  4. Step 4: Simplify right side
    716,118.24x = 389,190,383,103.77
  5. Step 5: Solve for x
    x = 389,190,383,103.77/716,118.24
  6. Step 6: Final answer
    x = 543,472.24

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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.