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Finding the Fourth Proportional to 355,166.20, 533,915.70 and 303,844.60

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Solution

The fourth proportional to 355,166.20, 533,915.70 and 303,844.60 is: 456,764.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,166.20 : 533,915.70 = 303,844.60 : x
  2. Step 2: Convert to fraction form
    355,166.20/533,915.70 = 303,844.60/x
  3. Step 3: Cross multiply
    355,166.20x = 533,915.70 × 303,844.60
  4. Step 4: Simplify right side
    355,166.20x = 162,227,402,300.22
  5. Step 5: Solve for x
    x = 162,227,402,300.22/355,166.20
  6. Step 6: Final answer
    x = 456,764.75

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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.