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Finding the Fourth Proportional to 324,106.39, 447,266.10 and 180,857.89

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Solution

The fourth proportional to 324,106.39, 447,266.10 and 180,857.89 is: 249,583.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,106.39 : 447,266.10 = 180,857.89 : x
  2. Step 2: Convert to fraction form
    324,106.39/447,266.10 = 180,857.89/x
  3. Step 3: Cross multiply
    324,106.39x = 447,266.10 × 180,857.89
  4. Step 4: Simplify right side
    324,106.39x = 80,891,603,114.53
  5. Step 5: Solve for x
    x = 80,891,603,114.53/324,106.39
  6. Step 6: Final answer
    x = 249,583.49

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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.