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Finding the Fourth Proportional to 261,409.40, 392,405.70 and 244,277.90

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Solution

The fourth proportional to 261,409.40, 392,405.70 and 244,277.90 is: 366,689.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,409.40 : 392,405.70 = 244,277.90 : x
  2. Step 2: Convert to fraction form
    261,409.40/392,405.70 = 244,277.90/x
  3. Step 3: Cross multiply
    261,409.40x = 392,405.70 × 244,277.90
  4. Step 4: Simplify right side
    261,409.40x = 95,856,040,344.03
  5. Step 5: Solve for x
    x = 95,856,040,344.03/261,409.40
  6. Step 6: Final answer
    x = 366,689.34

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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.