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Finding the Fourth Proportional to 463,034.05, 638,700.92 and 317,773.51

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Solution

The fourth proportional to 463,034.05, 638,700.92 and 317,773.51 is: 438,331.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,034.05 : 638,700.92 = 317,773.51 : x
  2. Step 2: Convert to fraction form
    463,034.05/638,700.92 = 317,773.51/x
  3. Step 3: Cross multiply
    463,034.05x = 638,700.92 × 317,773.51
  4. Step 4: Simplify right side
    463,034.05x = 202,962,233,188.63
  5. Step 5: Solve for x
    x = 202,962,233,188.63/463,034.05
  6. Step 6: Final answer
    x = 438,331.12

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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.