Home / 768,162.09-1,060,563.01-687,450.85

Finding the Fourth Proportional to 768,162.09, 1,060,563.01 and 687,450.85

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Solution

The fourth proportional to 768,162.09, 1,060,563.01 and 687,450.85 is: 949,129.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,162.09 : 1,060,563.01 = 687,450.85 : x
  2. Step 2: Convert to fraction form
    768,162.09/1,060,563.01 = 687,450.85/x
  3. Step 3: Cross multiply
    768,162.09x = 1,060,563.01 × 687,450.85
  4. Step 4: Simplify right side
    768,162.09x = 729,084,944,421.69
  5. Step 5: Solve for x
    x = 729,084,944,421.69/768,162.09
  6. Step 6: Final answer
    x = 949,129.04

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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.