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Finding the Fourth Proportional to 651,628.70, 977,151.45 and 252,136.70

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Solution

The fourth proportional to 651,628.70, 977,151.45 and 252,136.70 is: 378,092.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,628.70 : 977,151.45 = 252,136.70 : x
  2. Step 2: Convert to fraction form
    651,628.70/977,151.45 = 252,136.70/x
  3. Step 3: Cross multiply
    651,628.70x = 977,151.45 × 252,136.70
  4. Step 4: Simplify right side
    651,628.70x = 246,375,742,003.22
  5. Step 5: Solve for x
    x = 246,375,742,003.22/651,628.70
  6. Step 6: Final answer
    x = 378,092.22

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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.