Home / 400,646.24-552,870.78-219,323.43

Finding the Fourth Proportional to 400,646.24, 552,870.78 and 219,323.43

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Solution

The fourth proportional to 400,646.24, 552,870.78 and 219,323.43 is: 302,654.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,646.24 : 552,870.78 = 219,323.43 : x
  2. Step 2: Convert to fraction form
    400,646.24/552,870.78 = 219,323.43/x
  3. Step 3: Cross multiply
    400,646.24x = 552,870.78 × 219,323.43
  4. Step 4: Simplify right side
    400,646.24x = 121,257,515,816.38
  5. Step 5: Solve for x
    x = 121,257,515,816.38/400,646.24
  6. Step 6: Final answer
    x = 302,654.82

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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.