Home / 312,983.07-431,877.02-185,633.79

Finding the Fourth Proportional to 312,983.07, 431,877.02 and 185,633.79

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Solution

The fourth proportional to 312,983.07, 431,877.02 and 185,633.79 is: 256,151.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,983.07 : 431,877.02 = 185,633.79 : x
  2. Step 2: Convert to fraction form
    312,983.07/431,877.02 = 185,633.79/x
  3. Step 3: Cross multiply
    312,983.07x = 431,877.02 × 185,633.79
  4. Step 4: Simplify right side
    312,983.07x = 80,170,968,036.51
  5. Step 5: Solve for x
    x = 80,170,968,036.51/312,983.07
  6. Step 6: Final answer
    x = 256,151.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.