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Finding the Fourth Proportional to 479,294.72, 661,463.28 and 264,476.16

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Solution

The fourth proportional to 479,294.72, 661,463.28 and 264,476.16 is: 364,997.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,294.72 : 661,463.28 = 264,476.16 : x
  2. Step 2: Convert to fraction form
    479,294.72/661,463.28 = 264,476.16/x
  3. Step 3: Cross multiply
    479,294.72x = 661,463.28 × 264,476.16
  4. Step 4: Simplify right side
    479,294.72x = 174,941,268,275.41
  5. Step 5: Solve for x
    x = 174,941,268,275.41/479,294.72
  6. Step 6: Final answer
    x = 364,997.28

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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.