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Finding the Fourth Proportional to 355,049.40, 532,962.90 and 222,079.80

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Solution

The fourth proportional to 355,049.40, 532,962.90 and 222,079.80 is: 333,362.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,049.40 : 532,962.90 = 222,079.80 : x
  2. Step 2: Convert to fraction form
    355,049.40/532,962.90 = 222,079.80/x
  3. Step 3: Cross multiply
    355,049.40x = 532,962.90 × 222,079.80
  4. Step 4: Simplify right side
    355,049.40x = 118,360,294,239.42
  5. Step 5: Solve for x
    x = 118,360,294,239.42/355,049.40
  6. Step 6: Final answer
    x = 333,362.89

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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.