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Finding the Fourth Proportional to 436,904.20, 654,044.10 and 259,319.80

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Solution

The fourth proportional to 436,904.20, 654,044.10 and 259,319.80 is: 388,200.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,904.20 : 654,044.10 = 259,319.80 : x
  2. Step 2: Convert to fraction form
    436,904.20/654,044.10 = 259,319.80/x
  3. Step 3: Cross multiply
    436,904.20x = 654,044.10 × 259,319.80
  4. Step 4: Simplify right side
    436,904.20x = 169,606,585,203.18
  5. Step 5: Solve for x
    x = 169,606,585,203.18/436,904.20
  6. Step 6: Final answer
    x = 388,200.86

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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.