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Finding the Fourth Proportional to 585,956.72, 808,636.20 and 331,346

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Solution

The fourth proportional to 585,956.72, 808,636.20 and 331,346 is: 457,266.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,956.72 : 808,636.20 = 331,346 : x
  2. Step 2: Convert to fraction form
    585,956.72/808,636.20 = 331,346/x
  3. Step 3: Cross multiply
    585,956.72x = 808,636.20 × 331,346
  4. Step 4: Simplify right side
    585,956.72x = 267,938,370,325.20
  5. Step 5: Solve for x
    x = 267,938,370,325.20/585,956.72
  6. Step 6: Final answer
    x = 457,266.49

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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.