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Finding the Fourth Proportional to 585,917.69, 808,588.19 and 331,253.69

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Solution

The fourth proportional to 585,917.69, 808,588.19 and 331,253.69 is: 457,142.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,917.69 : 808,588.19 = 331,253.69 : x
  2. Step 2: Convert to fraction form
    585,917.69/808,588.19 = 331,253.69/x
  3. Step 3: Cross multiply
    585,917.69x = 808,588.19 × 331,253.69
  4. Step 4: Simplify right side
    585,917.69x = 267,847,821,627.92
  5. Step 5: Solve for x
    x = 267,847,821,627.92/585,917.69
  6. Step 6: Final answer
    x = 457,142.40

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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.