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Finding the Fourth Proportional to 479,572.37, 661,809.90 and 264,712.49

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Solution

The fourth proportional to 479,572.37, 661,809.90 and 264,712.49 is: 365,303.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,572.37 : 661,809.90 = 264,712.49 : x
  2. Step 2: Convert to fraction form
    479,572.37/661,809.90 = 264,712.49/x
  3. Step 3: Cross multiply
    479,572.37x = 661,809.90 × 264,712.49
  4. Step 4: Simplify right side
    479,572.37x = 175,189,343,226.60
  5. Step 5: Solve for x
    x = 175,189,343,226.60/479,572.37
  6. Step 6: Final answer
    x = 365,303.25

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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.