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Finding the Fourth Proportional to 713,676.76, 1,070,635.12 and 353,865.37

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Solution

The fourth proportional to 713,676.76, 1,070,635.12 and 353,865.37 is: 530,857.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,676.76 : 1,070,635.12 = 353,865.37 : x
  2. Step 2: Convert to fraction form
    713,676.76/1,070,635.12 = 353,865.37/x
  3. Step 3: Cross multiply
    713,676.76x = 1,070,635.12 × 353,865.37
  4. Step 4: Simplify right side
    713,676.76x = 378,860,692,873.79
  5. Step 5: Solve for x
    x = 378,860,692,873.79/713,676.76
  6. Step 6: Final answer
    x = 530,857.55

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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.