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Finding the Fourth Proportional to 507,701.16, 700,660.26 and 281,361.24

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Solution

The fourth proportional to 507,701.16, 700,660.26 and 281,361.24 is: 388,296.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,701.16 : 700,660.26 = 281,361.24 : x
  2. Step 2: Convert to fraction form
    507,701.16/700,660.26 = 281,361.24/x
  3. Step 3: Cross multiply
    507,701.16x = 700,660.26 × 281,361.24
  4. Step 4: Simplify right side
    507,701.16x = 197,138,639,572.32
  5. Step 5: Solve for x
    x = 197,138,639,572.32/507,701.16
  6. Step 6: Final answer
    x = 388,296.61

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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.