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Finding the Fourth Proportional to 298,114.43, 411,397.59 and 170,790.53

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Solution

The fourth proportional to 298,114.43, 411,397.59 and 170,790.53 is: 235,690.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,114.43 : 411,397.59 = 170,790.53 : x
  2. Step 2: Convert to fraction form
    298,114.43/411,397.59 = 170,790.53/x
  3. Step 3: Cross multiply
    298,114.43x = 411,397.59 × 170,790.53
  4. Step 4: Simplify right side
    298,114.43x = 70,262,812,436.82
  5. Step 5: Solve for x
    x = 70,262,812,436.82/298,114.43
  6. Step 6: Final answer
    x = 235,690.75

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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.