Home / 1,114,704.32-1,671,529.10-431,910.77

Finding the Fourth Proportional to 1,114,704.32, 1,671,529.10 and 431,910.77

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Solution

The fourth proportional to 1,114,704.32, 1,671,529.10 and 431,910.77 is: 647,661.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,114,704.32 : 1,671,529.10 = 431,910.77 : x
  2. Step 2: Convert to fraction form
    1,114,704.32/1,671,529.10 = 431,910.77/x
  3. Step 3: Cross multiply
    1,114,704.32x = 1,671,529.10 × 431,910.77
  4. Step 4: Simplify right side
    1,114,704.32x = 721,951,410,141.21
  5. Step 5: Solve for x
    x = 721,951,410,141.21/1,114,704.32
  6. Step 6: Final answer
    x = 647,661.81

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Double scale
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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.