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Finding the Fourth Proportional to 479,572.48, 661,806.28 and 264,712.40

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Solution

The fourth proportional to 479,572.48, 661,806.28 and 264,712.40 is: 365,301.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,572.48 : 661,806.28 = 264,712.40 : x
  2. Step 2: Convert to fraction form
    479,572.48/661,806.28 = 264,712.40/x
  3. Step 3: Cross multiply
    479,572.48x = 661,806.28 × 264,712.40
  4. Step 4: Simplify right side
    479,572.48x = 175,188,328,713.87
  5. Step 5: Solve for x
    x = 175,188,328,713.87/479,572.48
  6. Step 6: Final answer
    x = 365,301.05

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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.