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Finding the Fourth Proportional to 651,780.42, 977,671.44 and 178,469.88

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Solution

The fourth proportional to 651,780.42, 977,671.44 and 178,469.88 is: 267,705.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,780.42 : 977,671.44 = 178,469.88 : x
  2. Step 2: Convert to fraction form
    651,780.42/977,671.44 = 178,469.88/x
  3. Step 3: Cross multiply
    651,780.42x = 977,671.44 × 178,469.88
  4. Step 4: Simplify right side
    651,780.42x = 174,484,904,576.23
  5. Step 5: Solve for x
    x = 174,484,904,576.23/651,780.42
  6. Step 6: Final answer
    x = 267,705.04

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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.