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Finding the Fourth Proportional to 328,773.66, 453,681.81 and 201,431.94

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Solution

The fourth proportional to 328,773.66, 453,681.81 and 201,431.94 is: 277,960.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,773.66 : 453,681.81 = 201,431.94 : x
  2. Step 2: Convert to fraction form
    328,773.66/453,681.81 = 201,431.94/x
  3. Step 3: Cross multiply
    328,773.66x = 453,681.81 × 201,431.94
  4. Step 4: Simplify right side
    328,773.66x = 91,386,007,131.01
  5. Step 5: Solve for x
    x = 91,386,007,131.01/328,773.66
  6. Step 6: Final answer
    x = 277,960.25

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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.