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Finding the Fourth Proportional to 451,963.19, 623,554.72 and 258,231.89

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Solution

The fourth proportional to 451,963.19, 623,554.72 and 258,231.89 is: 356,271.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,963.19 : 623,554.72 = 258,231.89 : x
  2. Step 2: Convert to fraction form
    451,963.19/623,554.72 = 258,231.89/x
  3. Step 3: Cross multiply
    451,963.19x = 623,554.72 × 258,231.89
  4. Step 4: Simplify right side
    451,963.19x = 161,021,712,572.86
  5. Step 5: Solve for x
    x = 161,021,712,572.86/451,963.19
  6. Step 6: Final answer
    x = 356,271.74

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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.