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Finding the Fourth Proportional to 567,660.10, 783,372.57 and 313,005.70

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Solution

The fourth proportional to 567,660.10, 783,372.57 and 313,005.70 is: 431,948.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,660.10 : 783,372.57 = 313,005.70 : x
  2. Step 2: Convert to fraction form
    567,660.10/783,372.57 = 313,005.70/x
  3. Step 3: Cross multiply
    567,660.10x = 783,372.57 × 313,005.70
  4. Step 4: Simplify right side
    567,660.10x = 245,200,079,633.65
  5. Step 5: Solve for x
    x = 245,200,079,633.65/567,660.10
  6. Step 6: Final answer
    x = 431,948.77

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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.