Home / 328,320.27-453,111.67-199,291.60

Finding the Fourth Proportional to 328,320.27, 453,111.67 and 199,291.60

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Solution

The fourth proportional to 328,320.27, 453,111.67 and 199,291.60 is: 275,040.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,320.27 : 453,111.67 = 199,291.60 : x
  2. Step 2: Convert to fraction form
    328,320.27/453,111.67 = 199,291.60/x
  3. Step 3: Cross multiply
    328,320.27x = 453,111.67 × 199,291.60
  4. Step 4: Simplify right side
    328,320.27x = 90,301,349,692.97
  5. Step 5: Solve for x
    x = 90,301,349,692.97/328,320.27
  6. Step 6: Final answer
    x = 275,040.43

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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.