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Finding the Fourth Proportional to 374,729.79, 517,295.99 and 238,946.25

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Solution

The fourth proportional to 374,729.79, 517,295.99 and 238,946.25 is: 329,853.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,729.79 : 517,295.99 = 238,946.25 : x
  2. Step 2: Convert to fraction form
    374,729.79/517,295.99 = 238,946.25/x
  3. Step 3: Cross multiply
    374,729.79x = 517,295.99 × 238,946.25
  4. Step 4: Simplify right side
    374,729.79x = 123,605,938,069.81
  5. Step 5: Solve for x
    x = 123,605,938,069.81/374,729.79
  6. Step 6: Final answer
    x = 329,853.51

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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.