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Finding the Fourth Proportional to 501,347.45, 752,688.62 and 291,136.25

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Solution

The fourth proportional to 501,347.45, 752,688.62 and 291,136.25 is: 437,091.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,347.45 : 752,688.62 = 291,136.25 : x
  2. Step 2: Convert to fraction form
    501,347.45/752,688.62 = 291,136.25/x
  3. Step 3: Cross multiply
    501,347.45x = 752,688.62 × 291,136.25
  4. Step 4: Simplify right side
    501,347.45x = 219,134,942,244.48
  5. Step 5: Solve for x
    x = 219,134,942,244.48/501,347.45
  6. Step 6: Final answer
    x = 437,091.97

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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.