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Finding the Fourth Proportional to 479,387.94, 661,559.16 and 264,535.74

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Solution

The fourth proportional to 479,387.94, 661,559.16 and 264,535.74 is: 365,061.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,387.94 : 661,559.16 = 264,535.74 : x
  2. Step 2: Convert to fraction form
    479,387.94/661,559.16 = 264,535.74/x
  3. Step 3: Cross multiply
    479,387.94x = 661,559.16 × 264,535.74
  4. Step 4: Simplify right side
    479,387.94x = 175,006,041,944.38
  5. Step 5: Solve for x
    x = 175,006,041,944.38/479,387.94
  6. Step 6: Final answer
    x = 365,061.42

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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.