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Finding the Fourth Proportional to 479,577.90, 661,817.61 and 264,718.08

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Solution

The fourth proportional to 479,577.90, 661,817.61 and 264,718.08 is: 365,311.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,577.90 : 661,817.61 = 264,718.08 : x
  2. Step 2: Convert to fraction form
    479,577.90/661,817.61 = 264,718.08/x
  3. Step 3: Cross multiply
    479,577.90x = 661,817.61 × 264,718.08
  4. Step 4: Simplify right side
    479,577.90x = 175,195,087,029.39
  5. Step 5: Solve for x
    x = 175,195,087,029.39/479,577.90
  6. Step 6: Final answer
    x = 365,311.01

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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.