Home / 401,456.08-553,552.68-328,627.36

Finding the Fourth Proportional to 401,456.08, 553,552.68 and 328,627.36

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Solution

The fourth proportional to 401,456.08, 553,552.68 and 328,627.36 is: 453,131.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,456.08 : 553,552.68 = 328,627.36 : x
  2. Step 2: Convert to fraction form
    401,456.08/553,552.68 = 328,627.36/x
  3. Step 3: Cross multiply
    401,456.08x = 553,552.68 × 328,627.36
  4. Step 4: Simplify right side
    401,456.08x = 181,912,555,849.33
  5. Step 5: Solve for x
    x = 181,912,555,849.33/401,456.08
  6. Step 6: Final answer
    x = 453,131.90

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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.