Home / 986,687.81-1,361,626.49-533,978.81

Finding the Fourth Proportional to 986,687.81, 1,361,626.49 and 533,978.81

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Solution

The fourth proportional to 986,687.81, 1,361,626.49 and 533,978.81 is: 736,889.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,687.81 : 1,361,626.49 = 533,978.81 : x
  2. Step 2: Convert to fraction form
    986,687.81/1,361,626.49 = 533,978.81/x
  3. Step 3: Cross multiply
    986,687.81x = 1,361,626.49 × 533,978.81
  4. Step 4: Simplify right side
    986,687.81x = 727,079,687,321.49
  5. Step 5: Solve for x
    x = 727,079,687,321.49/986,687.81
  6. Step 6: Final answer
    x = 736,889.30

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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.