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Finding the Fourth Proportional to 274,972.40, 411,966.53 and 235,606.40

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Solution

The fourth proportional to 274,972.40, 411,966.53 and 235,606.40 is: 352,987.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,972.40 : 411,966.53 = 235,606.40 : x
  2. Step 2: Convert to fraction form
    274,972.40/411,966.53 = 235,606.40/x
  3. Step 3: Cross multiply
    274,972.40x = 411,966.53 × 235,606.40
  4. Step 4: Simplify right side
    274,972.40x = 97,061,949,875.76
  5. Step 5: Solve for x
    x = 97,061,949,875.76/274,972.40
  6. Step 6: Final answer
    x = 352,987.97

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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.