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Finding the Fourth Proportional to 423,483.02, 634,663.82 and 310,634.84

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Solution

The fourth proportional to 423,483.02, 634,663.82 and 310,634.84 is: 465,540.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,483.02 : 634,663.82 = 310,634.84 : x
  2. Step 2: Convert to fraction form
    423,483.02/634,663.82 = 310,634.84/x
  3. Step 3: Cross multiply
    423,483.02x = 634,663.82 × 310,634.84
  4. Step 4: Simplify right side
    423,483.02x = 197,148,694,179.49
  5. Step 5: Solve for x
    x = 197,148,694,179.49/423,483.02
  6. Step 6: Final answer
    x = 465,540.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.