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Finding the Fourth Proportional to 422,330.86, 632,023.63 and 345,541.94

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Solution

The fourth proportional to 422,330.86, 632,023.63 and 345,541.94 is: 517,108.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,330.86 : 632,023.63 = 345,541.94 : x
  2. Step 2: Convert to fraction form
    422,330.86/632,023.63 = 345,541.94/x
  3. Step 3: Cross multiply
    422,330.86x = 632,023.63 × 345,541.94
  4. Step 4: Simplify right side
    422,330.86x = 218,390,671,236.04
  5. Step 5: Solve for x
    x = 218,390,671,236.04/422,330.86
  6. Step 6: Final answer
    x = 517,108.01

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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.