Home / 431,664.05-595,688.24-238,089.78

Finding the Fourth Proportional to 431,664.05, 595,688.24 and 238,089.78

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Solution

The fourth proportional to 431,664.05, 595,688.24 and 238,089.78 is: 328,559.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,664.05 : 595,688.24 = 238,089.78 : x
  2. Step 2: Convert to fraction form
    431,664.05/595,688.24 = 238,089.78/x
  3. Step 3: Cross multiply
    431,664.05x = 595,688.24 × 238,089.78
  4. Step 4: Simplify right side
    431,664.05x = 141,827,282,605.41
  5. Step 5: Solve for x
    x = 141,827,282,605.41/431,664.05
  6. Step 6: Final answer
    x = 328,559.40

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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.