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Finding the Fourth Proportional to 423,473.73, 634,649.91 and 310,625.56

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Solution

The fourth proportional to 423,473.73, 634,649.91 and 310,625.56 is: 465,527.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,473.73 : 634,649.91 = 310,625.56 : x
  2. Step 2: Convert to fraction form
    423,473.73/634,649.91 = 310,625.56/x
  3. Step 3: Cross multiply
    423,473.73x = 634,649.91 × 310,625.56
  4. Step 4: Simplify right side
    423,473.73x = 197,138,483,697.70
  5. Step 5: Solve for x
    x = 197,138,483,697.70/423,473.73
  6. Step 6: Final answer
    x = 465,527.07

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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.