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Finding the Fourth Proportional to 400,622.68, 552,860.58 and 219,336.04

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Solution

The fourth proportional to 400,622.68, 552,860.58 and 219,336.04 is: 302,684.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,622.68 : 552,860.58 = 219,336.04 : x
  2. Step 2: Convert to fraction form
    400,622.68/552,860.58 = 219,336.04/x
  3. Step 3: Cross multiply
    400,622.68x = 552,860.58 × 219,336.04
  4. Step 4: Simplify right side
    400,622.68x = 121,262,250,289.30
  5. Step 5: Solve for x
    x = 121,262,250,289.30/400,622.68
  6. Step 6: Final answer
    x = 302,684.44

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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.