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Finding the Fourth Proportional to 479,424.48, 661,593.60 and 264,561.72

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Solution

The fourth proportional to 479,424.48, 661,593.60 and 264,561.72 is: 365,088.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,424.48 : 661,593.60 = 264,561.72 : x
  2. Step 2: Convert to fraction form
    479,424.48/661,593.60 = 264,561.72/x
  3. Step 3: Cross multiply
    479,424.48x = 661,593.60 × 264,561.72
  4. Step 4: Simplify right side
    479,424.48x = 175,032,340,756.99
  5. Step 5: Solve for x
    x = 175,032,340,756.99/479,424.48
  6. Step 6: Final answer
    x = 365,088.45

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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.