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Finding the Fourth Proportional to 400,452.45, 552,616.95 and 219,160.71

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Solution

The fourth proportional to 400,452.45, 552,616.95 and 219,160.71 is: 302,437.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,452.45 : 552,616.95 = 219,160.71 : x
  2. Step 2: Convert to fraction form
    400,452.45/552,616.95 = 219,160.71/x
  3. Step 3: Cross multiply
    400,452.45x = 552,616.95 × 219,160.71
  4. Step 4: Simplify right side
    400,452.45x = 121,111,923,120.03
  5. Step 5: Solve for x
    x = 121,111,923,120.03/400,452.45
  6. Step 6: Final answer
    x = 302,437.71

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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.