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Finding the Fourth Proportional to 1,147,687.02, 1,721,626.92 and 348,975.54

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Solution

The fourth proportional to 1,147,687.02, 1,721,626.92 and 348,975.54 is: 523,492.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,687.02 : 1,721,626.92 = 348,975.54 : x
  2. Step 2: Convert to fraction form
    1,147,687.02/1,721,626.92 = 348,975.54/x
  3. Step 3: Cross multiply
    1,147,687.02x = 1,721,626.92 × 348,975.54
  4. Step 4: Simplify right side
    1,147,687.02x = 600,805,684,085.54
  5. Step 5: Solve for x
    x = 600,805,684,085.54/1,147,687.02
  6. Step 6: Final answer
    x = 523,492.62

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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.