Home / 816,560.85-1,126,789.86-453,962.63

Finding the Fourth Proportional to 816,560.85, 1,126,789.86 and 453,962.63

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Solution

The fourth proportional to 816,560.85, 1,126,789.86 and 453,962.63 is: 626,432.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,560.85 : 1,126,789.86 = 453,962.63 : x
  2. Step 2: Convert to fraction form
    816,560.85/1,126,789.86 = 453,962.63/x
  3. Step 3: Cross multiply
    816,560.85x = 1,126,789.86 × 453,962.63
  4. Step 4: Simplify right side
    816,560.85x = 511,520,485,207.30
  5. Step 5: Solve for x
    x = 511,520,485,207.30/816,560.85
  6. Step 6: Final answer
    x = 626,432.78

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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.