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Finding the Fourth Proportional to 404,530.80, 606,304.20 and 286,236.24

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Solution

The fourth proportional to 404,530.80, 606,304.20 and 286,236.24 is: 429,006.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,530.80 : 606,304.20 = 286,236.24 : x
  2. Step 2: Convert to fraction form
    404,530.80/606,304.20 = 286,236.24/x
  3. Step 3: Cross multiply
    404,530.80x = 606,304.20 × 286,236.24
  4. Step 4: Simplify right side
    404,530.80x = 173,546,234,504.21
  5. Step 5: Solve for x
    x = 173,546,234,504.21/404,530.80
  6. Step 6: Final answer
    x = 429,006.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.