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Finding the Fourth Proportional to 427,704.84, 590,132.39 and 292,021.34

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Solution

The fourth proportional to 427,704.84, 590,132.39 and 292,021.34 is: 402,920.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,704.84 : 590,132.39 = 292,021.34 : x
  2. Step 2: Convert to fraction form
    427,704.84/590,132.39 = 292,021.34/x
  3. Step 3: Cross multiply
    427,704.84x = 590,132.39 × 292,021.34
  4. Step 4: Simplify right side
    427,704.84x = 172,331,246,894.43
  5. Step 5: Solve for x
    x = 172,331,246,894.43/427,704.84
  6. Step 6: Final answer
    x = 402,920.97

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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.