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Finding the Fourth Proportional to 745,457, 1,118,360.46 and 246,821

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Solution

The fourth proportional to 745,457, 1,118,360.46 and 246,821 is: 370,289.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,457 : 1,118,360.46 = 246,821 : x
  2. Step 2: Convert to fraction form
    745,457/1,118,360.46 = 246,821/x
  3. Step 3: Cross multiply
    745,457x = 1,118,360.46 × 246,821
  4. Step 4: Simplify right side
    745,457x = 276,034,847,097.66
  5. Step 5: Solve for x
    x = 276,034,847,097.66/745,457
  6. Step 6: Final answer
    x = 370,289.43

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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.