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Finding the Fourth Proportional to 451,562.51, 623,185.08 and 298,331.89

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Solution

The fourth proportional to 451,562.51, 623,185.08 and 298,331.89 is: 411,717.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,562.51 : 623,185.08 = 298,331.89 : x
  2. Step 2: Convert to fraction form
    451,562.51/623,185.08 = 298,331.89/x
  3. Step 3: Cross multiply
    451,562.51x = 623,185.08 × 298,331.89
  4. Step 4: Simplify right side
    451,562.51x = 185,915,983,564.91
  5. Step 5: Solve for x
    x = 185,915,983,564.91/451,562.51
  6. Step 6: Final answer
    x = 411,717.05

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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.