Home / 985,288.20-1,477,349.10-512,896.20

Finding the Fourth Proportional to 985,288.20, 1,477,349.10 and 512,896.20

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Solution

The fourth proportional to 985,288.20, 1,477,349.10 and 512,896.20 is: 769,040.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,288.20 : 1,477,349.10 = 512,896.20 : x
  2. Step 2: Convert to fraction form
    985,288.20/1,477,349.10 = 512,896.20/x
  3. Step 3: Cross multiply
    985,288.20x = 1,477,349.10 × 512,896.20
  4. Step 4: Simplify right side
    985,288.20x = 757,726,739,463.42
  5. Step 5: Solve for x
    x = 757,726,739,463.42/985,288.20
  6. Step 6: Final answer
    x = 769,040.71

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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.