Home / 677,939.52-1,015,651.08-485,416.65

Finding the Fourth Proportional to 677,939.52, 1,015,651.08 and 485,416.65

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Solution

The fourth proportional to 677,939.52, 1,015,651.08 and 485,416.65 is: 727,224.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,939.52 : 1,015,651.08 = 485,416.65 : x
  2. Step 2: Convert to fraction form
    677,939.52/1,015,651.08 = 485,416.65/x
  3. Step 3: Cross multiply
    677,939.52x = 1,015,651.08 × 485,416.65
  4. Step 4: Simplify right side
    677,939.52x = 493,013,944,822.48
  5. Step 5: Solve for x
    x = 493,013,944,822.48/677,939.52
  6. Step 6: Final answer
    x = 727,224.08

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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.