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Finding the Fourth Proportional to 417,043.55, 624,851.28 and 227,636.93

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Solution

The fourth proportional to 417,043.55, 624,851.28 and 227,636.93 is: 341,065.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,043.55 : 624,851.28 = 227,636.93 : x
  2. Step 2: Convert to fraction form
    417,043.55/624,851.28 = 227,636.93/x
  3. Step 3: Cross multiply
    417,043.55x = 624,851.28 × 227,636.93
  4. Step 4: Simplify right side
    417,043.55x = 142,239,228,647.90
  5. Step 5: Solve for x
    x = 142,239,228,647.90/417,043.55
  6. Step 6: Final answer
    x = 341,065.65

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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.