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Finding the Fourth Proportional to 398,828.71, 598,356.11 and 162,341.11

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Solution

The fourth proportional to 398,828.71, 598,356.11 and 162,341.11 is: 243,557.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,828.71 : 598,356.11 = 162,341.11 : x
  2. Step 2: Convert to fraction form
    398,828.71/598,356.11 = 162,341.11/x
  3. Step 3: Cross multiply
    398,828.71x = 598,356.11 × 162,341.11
  4. Step 4: Simplify right side
    398,828.71x = 97,137,795,072.68
  5. Step 5: Solve for x
    x = 97,137,795,072.68/398,828.71
  6. Step 6: Final answer
    x = 243,557.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.