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Finding the Fourth Proportional to 572,383.34, 857,767.82 and 316,331.21

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Solution

The fourth proportional to 572,383.34, 857,767.82 and 316,331.21 is: 474,050.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,383.34 : 857,767.82 = 316,331.21 : x
  2. Step 2: Convert to fraction form
    572,383.34/857,767.82 = 316,331.21/x
  3. Step 3: Cross multiply
    572,383.34x = 857,767.82 × 316,331.21
  4. Step 4: Simplify right side
    572,383.34x = 271,338,730,818.01
  5. Step 5: Solve for x
    x = 271,338,730,818.01/572,383.34
  6. Step 6: Final answer
    x = 474,050.72

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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.