Home / 985,655.10-1,478,137.05-512,183.10

Finding the Fourth Proportional to 985,655.10, 1,478,137.05 and 512,183.10

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Solution

The fourth proportional to 985,655.10, 1,478,137.05 and 512,183.10 is: 768,095.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,655.10 : 1,478,137.05 = 512,183.10 : x
  2. Step 2: Convert to fraction form
    985,655.10/1,478,137.05 = 512,183.10/x
  3. Step 3: Cross multiply
    985,655.10x = 1,478,137.05 × 512,183.10
  4. Step 4: Simplify right side
    985,655.10x = 757,076,816,493.86
  5. Step 5: Solve for x
    x = 757,076,816,493.86/985,655.10
  6. Step 6: Final answer
    x = 768,095.06

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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.