Home / 403,538.27-552,849.83-388,404.23

Finding the Fourth Proportional to 403,538.27, 552,849.83 and 388,404.23

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Solution

The fourth proportional to 403,538.27, 552,849.83 and 388,404.23 is: 532,116.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,538.27 : 552,849.83 = 388,404.23 : x
  2. Step 2: Convert to fraction form
    403,538.27/552,849.83 = 388,404.23/x
  3. Step 3: Cross multiply
    403,538.27x = 552,849.83 × 388,404.23
  4. Step 4: Simplify right side
    403,538.27x = 214,729,209,277.03
  5. Step 5: Solve for x
    x = 214,729,209,277.03/403,538.27
  6. Step 6: Final answer
    x = 532,116.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.