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Finding the Fourth Proportional to 451,951.17, 623,690.89 and 248,005.50

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Solution

The fourth proportional to 451,951.17, 623,690.89 and 248,005.50 is: 342,246.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,951.17 : 623,690.89 = 248,005.50 : x
  2. Step 2: Convert to fraction form
    451,951.17/623,690.89 = 248,005.50/x
  3. Step 3: Cross multiply
    451,951.17x = 623,690.89 × 248,005.50
  4. Step 4: Simplify right side
    451,951.17x = 154,678,771,019.90
  5. Step 5: Solve for x
    x = 154,678,771,019.90/451,951.17
  6. Step 6: Final answer
    x = 342,246.64

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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.