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Finding the Fourth Proportional to 633,741.48, 874,678.05 and 404,370

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Solution

The fourth proportional to 633,741.48, 874,678.05 and 404,370 is: 558,103.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,741.48 : 874,678.05 = 404,370 : x
  2. Step 2: Convert to fraction form
    633,741.48/874,678.05 = 404,370/x
  3. Step 3: Cross multiply
    633,741.48x = 874,678.05 × 404,370
  4. Step 4: Simplify right side
    633,741.48x = 353,693,563,078.50
  5. Step 5: Solve for x
    x = 353,693,563,078.50/633,741.48
  6. Step 6: Final answer
    x = 558,103.86

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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.