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Finding the Fourth Proportional to 585,609.78, 808,107.98 and 323,949.48

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Solution

The fourth proportional to 585,609.78, 808,107.98 and 323,949.48 is: 447,031.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,609.78 : 808,107.98 = 323,949.48 : x
  2. Step 2: Convert to fraction form
    585,609.78/808,107.98 = 323,949.48/x
  3. Step 3: Cross multiply
    585,609.78x = 808,107.98 × 323,949.48
  4. Step 4: Simplify right side
    585,609.78x = 261,786,155,254.70
  5. Step 5: Solve for x
    x = 261,786,155,254.70/585,609.78
  6. Step 6: Final answer
    x = 447,031.73

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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.