Home / 613,821.27-919,159.79-512,367.07

Finding the Fourth Proportional to 613,821.27, 919,159.79 and 512,367.07

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Solution

The fourth proportional to 613,821.27, 919,159.79 and 512,367.07 is: 767,238.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,821.27 : 919,159.79 = 512,367.07 : x
  2. Step 2: Convert to fraction form
    613,821.27/919,159.79 = 512,367.07/x
  3. Step 3: Cross multiply
    613,821.27x = 919,159.79 × 512,367.07
  4. Step 4: Simplify right side
    613,821.27x = 470,947,208,464.12
  5. Step 5: Solve for x
    x = 470,947,208,464.12/613,821.27
  6. Step 6: Final answer
    x = 767,238.33

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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.