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Finding the Fourth Proportional to 357,963.60, 536,484.60 and 274,443.60

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Solution

The fourth proportional to 357,963.60, 536,484.60 and 274,443.60 is: 411,312.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,963.60 : 536,484.60 = 274,443.60 : x
  2. Step 2: Convert to fraction form
    357,963.60/536,484.60 = 274,443.60/x
  3. Step 3: Cross multiply
    357,963.60x = 536,484.60 × 274,443.60
  4. Step 4: Simplify right side
    357,963.60x = 147,234,764,968.56
  5. Step 5: Solve for x
    x = 147,234,764,968.56/357,963.60
  6. Step 6: Final answer
    x = 411,312.11

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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.