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Finding the Fourth Proportional to 461,325.72, 636,629.58 and 260,121.72

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Solution

The fourth proportional to 461,325.72, 636,629.58 and 260,121.72 is: 358,968.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,325.72 : 636,629.58 = 260,121.72 : x
  2. Step 2: Convert to fraction form
    461,325.72/636,629.58 = 260,121.72/x
  3. Step 3: Cross multiply
    461,325.72x = 636,629.58 × 260,121.72
  4. Step 4: Simplify right side
    461,325.72x = 165,601,181,352.48
  5. Step 5: Solve for x
    x = 165,601,181,352.48/461,325.72
  6. Step 6: Final answer
    x = 358,968.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.