Home / 463,932.09-640,222.38-425,845.49

Finding the Fourth Proportional to 463,932.09, 640,222.38 and 425,845.49

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Solution

The fourth proportional to 463,932.09, 640,222.38 and 425,845.49 is: 587,663.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,932.09 : 640,222.38 = 425,845.49 : x
  2. Step 2: Convert to fraction form
    463,932.09/640,222.38 = 425,845.49/x
  3. Step 3: Cross multiply
    463,932.09x = 640,222.38 × 425,845.49
  4. Step 4: Simplify right side
    463,932.09x = 272,635,809,918.95
  5. Step 5: Solve for x
    x = 272,635,809,918.95/463,932.09
  6. Step 6: Final answer
    x = 587,663.19

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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.