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Finding the Fourth Proportional to 646,294.51, 892,043.52 and 374,318.52

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Solution

The fourth proportional to 646,294.51, 892,043.52 and 374,318.52 is: 516,650.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,294.51 : 892,043.52 = 374,318.52 : x
  2. Step 2: Convert to fraction form
    646,294.51/892,043.52 = 374,318.52/x
  3. Step 3: Cross multiply
    646,294.51x = 892,043.52 × 374,318.52
  4. Step 4: Simplify right side
    646,294.51x = 333,908,405,433.13
  5. Step 5: Solve for x
    x = 333,908,405,433.13/646,294.51
  6. Step 6: Final answer
    x = 516,650.54

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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.