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Finding the Fourth Proportional to 479,411.04, 661,589.18 and 264,557.32

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Solution

The fourth proportional to 479,411.04, 661,589.18 and 264,557.32 is: 365,090.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,411.04 : 661,589.18 = 264,557.32 : x
  2. Step 2: Convert to fraction form
    479,411.04/661,589.18 = 264,557.32/x
  3. Step 3: Cross multiply
    479,411.04x = 661,589.18 × 264,557.32
  4. Step 4: Simplify right side
    479,411.04x = 175,028,260,401.80
  5. Step 5: Solve for x
    x = 175,028,260,401.80/479,411.04
  6. Step 6: Final answer
    x = 365,090.17

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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.