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Finding the Fourth Proportional to 507,491.82, 700,361.49 and 281,122.74

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Solution

The fourth proportional to 507,491.82, 700,361.49 and 281,122.74 is: 387,962.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,491.82 : 700,361.49 = 281,122.74 : x
  2. Step 2: Convert to fraction form
    507,491.82/700,361.49 = 281,122.74/x
  3. Step 3: Cross multiply
    507,491.82x = 700,361.49 × 281,122.74
  4. Step 4: Simplify right side
    507,491.82x = 196,887,541,059.28
  5. Step 5: Solve for x
    x = 196,887,541,059.28/507,491.82
  6. Step 6: Final answer
    x = 387,962.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.