Home / 827,200.60-1,240,800.90-543,765.40

Finding the Fourth Proportional to 827,200.60, 1,240,800.90 and 543,765.40

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Solution

The fourth proportional to 827,200.60, 1,240,800.90 and 543,765.40 is: 815,648.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,200.60 : 1,240,800.90 = 543,765.40 : x
  2. Step 2: Convert to fraction form
    827,200.60/1,240,800.90 = 543,765.40/x
  3. Step 3: Cross multiply
    827,200.60x = 1,240,800.90 × 543,765.40
  4. Step 4: Simplify right side
    827,200.60x = 674,704,597,708.86
  5. Step 5: Solve for x
    x = 674,704,597,708.86/827,200.60
  6. Step 6: Final answer
    x = 815,648.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.