Home / 714,256.20-985,685.76-391,996.26

Finding the Fourth Proportional to 714,256.20, 985,685.76 and 391,996.26

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Solution

The fourth proportional to 714,256.20, 985,685.76 and 391,996.26 is: 540,961.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,256.20 : 985,685.76 = 391,996.26 : x
  2. Step 2: Convert to fraction form
    714,256.20/985,685.76 = 391,996.26/x
  3. Step 3: Cross multiply
    714,256.20x = 985,685.76 × 391,996.26
  4. Step 4: Simplify right side
    714,256.20x = 386,385,131,455.26
  5. Step 5: Solve for x
    x = 386,385,131,455.26/714,256.20
  6. Step 6: Final answer
    x = 540,961.54

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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.