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Finding the Fourth Proportional to 658,440.24, 987,653.16 and 159,804.24

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Solution

The fourth proportional to 658,440.24, 987,653.16 and 159,804.24 is: 239,704.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,440.24 : 987,653.16 = 159,804.24 : x
  2. Step 2: Convert to fraction form
    658,440.24/987,653.16 = 159,804.24/x
  3. Step 3: Cross multiply
    658,440.24x = 987,653.16 × 159,804.24
  4. Step 4: Simplify right side
    658,440.24x = 157,831,162,617.40
  5. Step 5: Solve for x
    x = 157,831,162,617.40/658,440.24
  6. Step 6: Final answer
    x = 239,704.61

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1.5x scale

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.