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Finding the Fourth Proportional to 347,812.40, 522,352.20 and 304,266.80

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Solution

The fourth proportional to 347,812.40, 522,352.20 and 304,266.80 is: 456,954.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,812.40 : 522,352.20 = 304,266.80 : x
  2. Step 2: Convert to fraction form
    347,812.40/522,352.20 = 304,266.80/x
  3. Step 3: Cross multiply
    347,812.40x = 522,352.20 × 304,266.80
  4. Step 4: Simplify right side
    347,812.40x = 158,934,432,366.96
  5. Step 5: Solve for x
    x = 158,934,432,366.96/347,812.40
  6. Step 6: Final answer
    x = 456,954.47

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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.