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Finding the Fourth Proportional to 260,040.80, 390,061.20 and 244,294.40

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Solution

The fourth proportional to 260,040.80, 390,061.20 and 244,294.40 is: 366,441.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,040.80 : 390,061.20 = 244,294.40 : x
  2. Step 2: Convert to fraction form
    260,040.80/390,061.20 = 244,294.40/x
  3. Step 3: Cross multiply
    260,040.80x = 390,061.20 × 244,294.40
  4. Step 4: Simplify right side
    260,040.80x = 95,289,766,817.28
  5. Step 5: Solve for x
    x = 95,289,766,817.28/260,040.80
  6. Step 6: Final answer
    x = 366,441.60

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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.